Chapter 18

Hello everyone, welcome to our Walkthrough for Chapter Eighteen of Year Seven of Harry Potter Hogwarts Mystery. During the previous chapter, you visited Corey in the Hospital Wing and learned that many other students were also victims of Doxy bites. Thankfully, Corey was recovering well, but she had to stay for a while in the Hospital Wing. In the meantime, you decided to investigate the matter and figure out how to deal with the Doxy infestation. You went to see Professor Kettleburn and asked him to tell you everything about Doxies. Chiara also offered her help, and you gladly accepted it. You learned that you need some Doxycide in order to stop the infestation. You decided to ask Professor Sprout for some ingredients, and thankfully, she agreed to help. Barnaby also helped with gathering the ingredients, and he admitted that he accidentally carried a Doxy in his pocket into the castle, which likely started the infestation. After gathering all the ingredients, you went to see Professor Snape and ask for his help with brewing Doxycide. Luckily, Snape helped you brew it, and you learned that there is a Doxy Queen that needs to be taken care of in order to stop the infestation. Now is the time to continue where you left off. Proceed to the Care of Magical Creatures when you are ready.

To unlock the Occamy class, you will need to earn a total of nine stars from Care of Magical Creatures classes. Select the class duration you prefer, and hit Start when you are ready to begin.

As usual, prioritize 5-cost actions to save as much energy as possible.

Try to complete all the mini-tasks to earn some extra Courage points.

Return to Care of Magical Creatures once you obtain enough stars to unlock the lesson.

Completing the Occamy lesson requires earning five stars within three hours. All five stars are needed to pass, so avoid starting this task if you are low on energy.

During the lesson, Professor Kettleburn will ask you a question about Occamies. Other than that, this lesson is fairly similar to most other classes.

You will earn the achievement once you complete the lesson.

Next, you should go to the History of Magic classroom.

To unlock the Founding of St. Mungo’s lesson, you will need to earn nine stars from the History of Magic classes. Pick the class duration suitable to your liking, and hit Start to begin.

Focus on 5-cost actions if you want to save some energy.

Each task you successfully complete will grant you some extra Knowledge points.

Head back to the classroom once you acquire enough stars to unlock the lessons.

To complete the Founding of St. Mungo’s lesson, you will need to earn five stars within eight hours. All five stars are needed to pass.

During the lesson, you will be asked some questions about St. Mungo’s Hospital.

When you’re done, you will earn the achievement for completing the lesson.

Now that you’re done with the lessons, you can continue the story. Proceed to Peeves’ Room when you are ready.

Given the fact that Peeves’ room is in a state of total mess, it’s no wonder why Doxies decided to occupy it.

With some luck, you might even be able to find the Doxy Queen. The faster you do, the faster you can save Hogwarts from the infestation.

Chiara will agree that the Doxy Queen might be found in Peeves’ room.

She’ll also reveal to you an interesting piece of information about Penny.

Chiara will ask if you have any idea where Peeves might be. There are three options to choose from. These won’t have any big impact on the story, so feel free to pick the option you prefer.

In any case, you will hope that Peeves doesn’t show up while you are looking through his stuff.

Shortly after, the two of you will start searching the room.

Looking for Doxies and their Queen requires earning five stars within one hour. Three stars are needed to pass.

There are 5-cost actions tied to Chiara, your character, and a nearby portrait. Prioritize those if you want to save some energy.

Shortly after searching the room, Chiara will tell you she heard something.

Moments later, a swarm of Doxies will appear and start flying towards you.

You will quickly take out your wand and cast the Knockback Jinx to fend them off.

Trace the wand movement to cast Flipendo.

Chiara will thank you for saving her.

Still, the threat is far from over, and both of you will prepare to defend yourselves.

Unfortunately, there will be way too many Doxies, and the two of you will find it hard to deal with them.

Moments later, Victor will enter the room and blast the Doxies with Bombarda.

The spell will work, and the creatures will leave the place.

Needless to say, you definitely did not expect Victor to show up.

He will be glad he had the chance to save you and look good in the process.

Chiara will wonder what he’s doing in Peeves’ room.

You will also be curious about his sudden appearance.

However, that mystery will remain unsolved… at least for the time being.

Victor will notice a sandwich inside the room, so he’ll be curious about it.

It will look just like one of the sandwiches Jae makes during detention.

Chiara will assume that you might be able to find Doxies in the kitchens.

You will quickly decide to check if that’s the case.

Proceed to the kitchens when you are ready to continue.

Upon arriving, you will notice that Pitts is stuck.

You will immediately decide to save him.

Hopefully, he might be able to tell you where the Doxy Queen is.

Chiara will point out the Doxy eggs lying around.

Victor won’t seem to care about those.

Chiara will suggest avoiding the eggs. You can choose whether you want to break them or not. If you like Chiara, it is recommended to be careful of the eggs. On the other hand, if you like Victor, you should pick the first option.

Moments later, the Doxy Queen will appear, accompanied by a swarm of Doxies.

Victor will be eager to test his skills.

As for Chiara, she will be more concerned with dealing with the Doxy Queen.

You will tell both of them to get their wands ready.

Saving Pitts requires earning five stars within eight hours. All five stars are needed to pass.

Make sure to slide the screen left and right to see all the available actions. There are 5-cost actions tied to the Doxy Queen, your character, and a pile of Doxy eggs near Victor. Focus on those if you want to save as much energy as possible.

Eventually, you will get an opening, so you will prepare your wand to cast the Knockback Jinx at the Doxy Queen.

Trace the wand movement to cast Flipendo.

Unfortunately, the Doxy Queen will fly away before you get the chance to use Doxycide on her.

Chiara will reassure you that you will get another chance to get her.

Thankfully, at least you managed to save Pitts from the Doxies.

Still, you will need to figure out where the Doxy Queen went.

After all, getting rid of her is the only way to save Hogwarts from the infestation.

Thankfully, Chiara saw where the Doxy Queen went.

You will need to wait four hours until you can continue. Since you will probably be low on energy, it is recommended to wait and let your energy recharge in the meantime.

Head to the Prefects’ Bathroom once the waiting time is over.

Shortly upon arriving, you will spot the Doxy Queen near the bath.

Chiara will ask if you have the Doxycide with you.

You’ll nod and say that you have it.

Victor will admit that he was hoping for something more exciting.

As for you, you only want to save Hogwarts from the infestation.

You will take out the Doxycide and slowly approach the Doxy Queen.

Unfortunately, you will end up missing her.

You will need to find another way to deal with the Doxy Queen.

Victor will suggest dueling her.

Chiara will point out that the Knockback Jinx wasn’t very effective last time.

Still, Flipendo did push her back.

Victor will be “fascinated” by your understanding of the Knockback Jinx.

You will explain that you want to use Flipendo to push the Doxy Queen into the tub of Doxycide.

Both Chiara and Victor will like your plan.

Moments later, you will take out your wand and prepare to duel the Doxy Queen.

The task window will display the recommended attribute levels, as well as the cost of the duel. Hit Start once you are ready to begin.

Generally, the attribute requirements for this duel are fairly low, so if your attributes are 3 points higher than those of the Doxy Queen, you can simply spam Aggressive or Sneaky, and use Depulso or Flipendo. This should allow you to win the duel in two turns. However, if you rushed through the story, and your attributes are low, you can go Aggressive during the first turn and use Incendio. If you get the burn effect, you can go Aggressive or Sneaky during the second turn and use Depulso or Flipendo. With this, you should be able to win the duel in two turns, as long as you get the burn effect from Incendio.

After you win the duel, you will prepare to cast one more Flipendo.

Trace the path on the screen to cast the Knockback Jinx.

The spell will work as intended, and you will blast the Doxy Queen straight into the pool of Doxycide.

You will be happy with the way things played out.

Victor will say that the way you’ve dealt with the Doxy Queen was pretty cool.

As for Chiara, she will be glad that you managed to save Hogwarts once again.

You’ll agree with her.

Victor will say that he’s fine with saving Hogwarts, as long as he can do it in style.

You’ll humbly say that you’re glad to be able to put a stop to the Doxy infestation.

Victor will wonder if you had any ulterior motives.

He’ll ask if you had any thoughts about how stopping the infestation would make you look. There are two options to reply with. Chiara will be happy if you pick the first option. On the other hand, you should go with the second option if you like Victor.

In any case, you will say that you helped because you didn’t want anyone to get hurt.

Victor will admit he had a lot of fun helping you save Hogwarts.

Unfortunately, Chiara won’t be able to say the same.

She will suggest heading back to the Hospital Wing.

You will decide to go there and see how Corey is doing.

Proceed to the Hospital Wing when you are ready.

Upon arriving, you will be able to interact with some characters and see what they have to say.

Corey will be very glad to see you. Apparently, she already heard about your recent adventure.

You will be surprised that the news is spreading so fast already.

As it seems, Victor was the one to spread the word.

You will notice that Corey is very impressed by Victor.

All in all, you’ll be glad that your friend recovered from the Doxy bite.

Corey will be eager to continue the investigation.

She will ask if you would rather be Detective Conebush or Auror Persimmons. This choice won’t have a huge impact on the story, so feel free to go with the option you prefer.

Madam Pomfrey will notice the two of you chatting, so she’ll ask you to help with administering the antidote to the Doxy victims.

Helping Madam Pomfrey requires earning five stars within three hours. All five stars are needed to pass, so avoid starting this task if you are low on energy.

Be sure to slide the screen left and right to see all the available actions.

Madam Pomfrey will thank Corey and you for helping the Doxy victims.

Both of you will humbly say that you’re happy to help.

You’ll say that one more person deserves credit for saving Hogwarts from the Doxy infestation – Victor Ketsueki.

You will suggest going to the Great Hall to meet with him.

You’ll need to wait three hours before you can continue. Since you will probably be low on energy at this point, it is recommended to wait and let your energy recharge in the meantime.

Proceed to the Great Hall once the waiting time is over.

When you arrive, you will notice the speech bubbles above some of the characters. Tap on those if you are curious to see what they have to say.

You will spot Victor retelling your latest adventure to other students.

Much to your surprise, he will give you a credit for dealing with the Doxy Queen.

You will decide to wait until the crowd disperses.

Corey will admit that she didn’t expect Victor to credit you for defeating the Doxy Queen.

She’ll say that she’s very intrigued with him.

Corey will be curious to know what you think of Victor. There are three options to choose from. If you like Victor, it is recommended to pick the first option.

Moments later, you will spot Victor approaching you.

He will be glad to see both of you.

Corey will be surprised that he knows who she is.

You will remind her that pretty much every student knows her name.

Victor will say that he always needs to make sure he is hanging around the right people.

Corey will be slightly confused by his words.

He’ll reassure her there is nothing to worry about.

He will wonder why you wanted to see him.

You will thank him for saving Chiara and you from the Doxy swarm.

He’ll politely say it was nothing.

Corey will smile and say that he’s incredibly brave and heroic.

You’ll also tell him that you wanted to get to know him better.

Thankfully, he will agree to tell you more about himself.

Talking to Victor requires earning five stars within three hours. Three stars are needed to pass.

There are 5-cost actions tied to Victor and your character. Prioritize those if you want to save some energy.

You will be glad that you got the chance to know Victor.

He will promise to keep things interesting at Hogwarts.

You will still be curious to know why he went to Peeves’ room.

He will tell you that Peeves is his friend. In fact, he knew him ever since his first year at Hogwarts.

Corey will find it odd that anyone could be friends with Peeves.

You’ll agree with her.

Victor will ask if you believe him. There are two options to reply with. If you like Victor, it is recommended to pick the first option.

He will go on and explain that he was friends with Peeves before he became a vampire.

Peeves was one of his few friends before he became popular.

He’ll say that he has to be selective when it comes to making new friends.

Both Corey and you will happily say that you’d like to be friends with Victor.

After thinking about it for a moment, he will decide to give you a chance.

He’ll also say that he likes your adventurous spirit.

Corey will look forward to new adventures.

Your following lines will differ, based on whether your character is a Head Boy/Girl, Prefect, or just a regular student.

Moments later, Chiara will approach and say that the Headmaster wants to see both of you in his office.

You will figure out it has something to do with exploring careers in the wizarding world.

Proceed to the Headmaster’s Office when you are ready.

As it seems, Professor Dumbledore was well aware of your efforts to stop the Doxy infestation.

He will commend you on a job well done.

You’ll thank him for his kind words.

Chiara will humbly say that both of you simply did what anyone else would do.

Still, it was the two of you who decided to do something about the problem.

Because of that, you got the attention of a very special group of witches and wizards.

Professor Dumbledore will go on and say that both Chiara and you were invited to visit St. Mungo’s Hospital for Magical Maladies.

Chiara will be happy to hear that.

The Headmaster will then tell you the details about the arrangement.

Talking about your assignment requires earning five stars within eight hours. Three stars are needed to pass.

There are 5-cost actions tied to Professor Dumbledore and your character. Focus on those if you want to save as much energy as possible.

The Headmaster will remind both of you to stay dedicated to your school work.

Chiara will admit that she always dreamed of working at St. Mungo’s. However, she will be slightly worried about the assignment.

Professor Dumbledore will be sure that she’ll do just fine.

You will also say give her some words of encouragement.

The Headmaster will ask if you’ve ever considered a career in medicine. There are two options to reply with. If this is something you’d want for your character, it is recommended to pick the first option.

Either way, you will thank Professor Dumbledore for the amazing opportunity you’ve been given.

Chiara will promise not to let him down.

Professor Dumbledore will be confident that he’s made the right choice by picking you and Chiara for the assignment.

Shortly after, he will return to his work.

Chiara will find it hard to hide the excitement.

You will be happy that she finally has the chance to pursue her dream.

Shortly after, the two of you will leave the Headmaster’s office.

This will conclude Chapter 18 of Year 7. Hit the Collect button to claim your rewards.

Victor will be added to your list of friends, and you will be able to level up your friendship with him.

Soon enough, you will visit St. Mungo’s. This is an amazing opportunity to explore future careers. What will happen during your assignment? Is there another mystery waiting for you there? Find out in the next chapter of Harry Potter Hogwarts Mystery!
Thank you for reading.

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