: For the overdue The Metamorphosis , Percival takes a book written by Jughead's grandfather. Jughead begins to physically suffer, including his fingernails peeling off , as he fears turning into a "cockroach" or losing his mind to Percival.
: The couple receives a negative pregnancy test ; while Archie is disappointed, Betty is relieved, feeling they must save the town from Percival before starting a family. [S6E13] Chapter One Hundred and Eight: Ex-Libris
: Jughead eventually finds replacement copies of all the books to retrieve their items. To break Percival's hold, Cheryl uses her pyrokinetic powers to burn the items (including Betty's diary and Archie's guitar), though Jughead refuses to burn his grandfather's book. : For the overdue The Metamorphosis , Percival
Percival seizes personal items as "collateral" for the unreturned books, using them to trigger supernatural hauntings: : Jughead eventually finds replacement copies of all
: For his overdue book Songwriting From the Heart , Percival takes his guitar. Archie is then haunted by the ghost of Ms. Grundy , forcing him and Betty to finally confront the fact that he was groomed and abused as a teenager.