Oxeneforda Ability or Book of Knowledge is also trickier to get, just like the Oxeneforda Gear we discussed earlier. This AC Valhalla Ability counts as an Oxenefordscire Wealth collectible and allows you to unlock the Vengeance of Thor Ability in the video game developed by Ubisoft.
This Book of Knowledge, though, is inside the Oxeneforda Crypt, and as you can guess, it requires a key. The map below shows that this ability is found on the northern side of Oxeneforda village, very close to the gear we covered earlier.
If you zoom in, though, you’ll notice that there are two buildings, and they are independent. The gear is inside a tower, but the ability is inside the Oxeneforda Crypt. Which, as said, required a key.
Where To Find the AC Valhalla Oxeneforda Crypt Key
Good, so let’s get the key. When you are close to the Crypt, just across the street, you’ll see the tower where you found the gear, and to get inside, we will use the same tactics.
Look at the colored windows on the first floor and shoot one of them, then climb inside the tower. Now, instead of going up to the second floor, you’ll want to go down, but the path is blocked by another shelf. You can see it in the following picture.
Pull this shelf back, and you’ll find a hatch and a ladder. Follow the ladder down, and the Oxeneforda Crypt Key will be located on a desk under a large cross. Take the key, then exit the tower through the front door by destroying the red locker. Now, go left and open the crypt you can see in my screenshot. The Book of Knowledge is right in front of you.