On Teen Wolf Season 5 Episode 6, the pack finally reads the Dread Doctors and Theo joins in. It's not too long before everyone falls asleep, well everyone except Theo. He sneaks off to record Kira sleep talking.
Back at school, everyone starts to remember. Lydia recalls seeing her mom treat her grandmother at Eichen house. Her grandmother was in a bathroom bleeding from the ear, and she told Lydia that they were coming.
Scott has an asthma attack, and remembers being taken to the hospital when he was young after his dog bit him and he had an asthma attack. Liam runs into the room and has to turn on some of the wolf features to get Scott to snap out of it.
Meanwhile, Mason fills Kira in on his theory about why she can't read the book. Kitsunes have trouble with languages, and the entire book is a language trick, so it is confusing the fox in her.
Lydia realizes her memory with the Dread Doctors in surgery isn't actually her memory at all. It's someone else's.
Theo shares his creepy recording of Kira with Scott. He tells Scott that the rough translation is, "I am the messenger of death," which leads Scott to share that he isn't sure he can trust Kira anymore.
Stiles' memory is of his mother when she was in the hospital when he was ten. She goes to the roof because she couldn't stand to be in the same room as Stiles. She thought he was going to kill her.
Hospital fight scene time! Don't worry, everyone makes it out alive, and Theo even saves Stiles' life.