9 Harry Potter and the Methods of Rationality
#2 of 2 in The Unbeatable Squirrel Girl (Novels)
#2 of 9 in The Invisible Library
#3 of 9 in The Invisible Library
#1 of 9 in The Invisible Library
#4 of 9 in The Invisible Library
#5 of 9 in The Invisible Library