The Bestiary

"The Bestiary? I haven't seen that for many years. It'll be somewhere in the east wing."

- Geoffrey of Monmouth to Merlin

The Bestiary of Phylum of Cambria is the book Gaius asked Merlin to fetch for him from the Royal Library. He asked for it from Geoffrey of Monmouth who told him to look in the east wing. While looking for the book Merlin accidentally triggered a secret door which lead to a hidden room where he released the Goblin from the Lead box. When the Goblin left the room, Merlin followed him back to the library. It was there when the Goblin strated to throw books at him and he found the Bestiary. Merlin took the book with him, left the library and went to Artur's chambers where the Goblin was making a mess. When the Goblin went to Morgana's chambers, he followed him and forgot the Bestiary under Arthur's bed.