Struggling with those animal door puzzles in Hogwarts Legacy? Don't worry! Learn the simple math behind them and how to find the Arithmancy Study Guide to unlock all the treasure.
Hey there! So you've run into one of those weird animal doors in Hogwarts Legacy, huh? Don't sweat it, they're actually way simpler than they look and don't require any special spells or being a certain level. It's all about a little bit of math, or Arithmancy as we say in the Wizarding World!
Basically, each of those cute (or not-so-cute) magical beasts on the door represents a number. You just need to figure out which number corresponds to which animal and then solve the little equations on the door to open it up and grab whatever goodies are inside. Easy peasy!
Finding the Animal Number Key
There are a couple of ways to get the key to these puzzles. You can find it in-game, or I can just tell you right now. Either way, here's how you find the official Arithmancy Study Guide page:
First, you'll want to head over to the Divination Classroom Floo Flame. From there, go across the rafters and then take a right. You should find yourself facing one of these puzzle doors, and right near a blackboard, there's a blue chest. Open that up, and inside you'll find the Arithmancy Study Guide page with all the animal-to-number assignments.
| Animal | Number |
| Owl | 0 |
| Unicorn | 1 |
| Goat | 2 |
| Hydra | 3 |
| Bird | 4 |
| Insect | 5 |
| Salamander | 6 |
| Quad-Tentacled Beast | 7 |
| Spider | 8 |
| Multi-Tentacled Beast | 9 |
How to Solve the Puzzles
Once you've got that guide page, solving the doors is a piece of cake. You'll usually see a triangle with a larger number in the middle and three circles on the corners. Each corner circle has a dial with the animal symbols on it. The trick is that the numbers on the two corner circles add up to the number in the middle circle.
So, if you see an Owl (which is 0) and a Goat (which is 2) on two of the corner circles, and the middle number is 6, you know the third animal has to be the one that adds up with 0 and 2 to make 6. In this case, it would be the Hydra (which is 3), because 0 + 2 + 3 = 5. Wait, that doesn't add up. Let me recheck that example... Ah, okay, the example in the guide says Owl (0) + Goat (2) + [Question Mark] = 6. So the question mark has to be 4, which is the Bird! See? Just a bit of simple addition.
You'll use the turnable animal selection wheel next to the door to set the correct animal for each missing number. Just spin it until the right animal is showing in the slot. Most doors have two of these equations to solve, but once you've got the hang of the first one, the second will be just as easy.
Pro Tip: The Arithmancy Study Guide page is found in a Blue Chest, so keep an eye out for those! They often contain valuable items and pages like this one.
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