There’s a total of 8 Collection Chests to be found in The Library Annex section of Hogwarts Castle, in Hogwarts Legacy. One of these isn’t accessible until you complete the Hall of Herodiana quest, but most of the others only require you to complete puzzles.
All Collection Chest Locations in The Library Annex of Hogwarts Castle
Note that the first line of each subheader here refers to the Floo Flame from which we start the search for a chest. It doesn’t mean that the first three chests are actually inside the Divination Classroom.
|Divination Classroom - Arithmancy Class - Collection Chest 1||Conjuration||N/A|
|Divination Classroom - Arithmancy Class - Collection Chest 2||Conjuration||N/A|
|Divination Classroom - Arithmancy Class - Collection Chest 3||Conjuration||N/A|
|Divination Classroom - The Viaduct Bridge Puzzle Collection Chests 4 and 5||Conjuration and Wand Handle||Incendio or Confringo|
|Central Hall - Animal Door Puzzle - The Library Annex Collection Chest 6 (alternatively Long Gallery)||Conjuration||Potentially Complete Hall of Herodiana|
|Library - The Basement of the Restricted Section - The Library Annex Collection Chest 7||Wand Handle||Complete Secrets of the Restricted Section|
|Bell Tower Courtyard - The Library Annex Collection Chest 8||Conjuration||N/A|
Divination Classroom - Arithmancy Class - Collection Chest 1
Go to the Divination Classroom Floo Flame then head west up the small set of wooden stairs. Follow the path until you see an opening to your right, where you’ll see an animal door puzzle. Complete this if you haven’t done so already (check our screenshot below), then go through the door to find the Collection Chest on the other side, beneath the painting of a man in armor.
Divination Classroom - Arithmancy Class - Collection Chest 2
The second Collection Chest can be found just up the stairs from the first, behind another animal door puzzle. You can see the symbols with the solution in the screenshot below.
Divination Classroom - Arithmancy Class - Collection Chest 3
The third chest is behind the other animal door puzzle in this room. The solution to this can be seen in the screenshot below.
Divination Classroom - The Viaduct Bridge Puzzle Collection Chests 4 and 5
Rewards: Conjuration and Wand Handle
Travel to the Divination Classroom Floo Flame again, but this time go down two flights of the spiral stairs, then turn left through the large doors leading to the bridge which connects The Library Annex to The Great Hall. There’s a puzzle associated with this bridge which leads to a hidden underground area where to Collection Chests can be found.
To complete the puzzle, you need to observe the symbols shown on the platform at the beginning of the bridge. You’ll see that each symbol has a Latin numeral associated with it, and these same symbols can be found beneath four braziers, two on each side of the bridge. You need to match the Latin numeral for each symbol with the braziers by interacting with them to change the numeral. If the brazier isn’t lit, you can use a fire-based spell to light it such as Incendio or Confringo.
If you need help solving this puzzle, see the clip below.
Central Hall - Animal Door Puzzle - The Library Annex Collection Chest 6
This Collection Chest is one that you can find very early on in the game, and you likely already have it if you’ve come this far. It’s the one behind the animal door puzzle in the southwest corner of the Central Hall.
Library - The Basement of the Restricted Section - The Library Annex Collection Chest 7
Reward: Wand Handle
For this one, you need to travel to the Library Floo Flame, then go to the entrance of the restricted section on the northeastern side of the room. You need to follow the linear path down the stairs and through the restricted section until you reach the basement, where you’ll find the Collection Chest on a table, as shown in the screenshot below.
Bell Tower Courtyard - The Library Annex Collection Chest 8
This one is a bit counterintuitive. You need to go to the Bell Tower Courtyard Floo Flame in The Bell Tower Wing section of the castle, then go through the large doors with knights on either side. Head down the steps and turn right to find an animal puzzle door, which can be solved by placing a dragon head on the left symbol and the unicorn on the right. You’ll find the Collection Chest on the other side. Although you may think this one counts towards The Bell Tower Wing chests, it actually counts for The Library Annex.