James Potter and the Vault of Destinies

James Potter and the Curse of the Gatekeeper is a self-published online novel written by American computer animator George Norman Lippert in 2007. It is a fanonical continuation of J. K. Rowling's Harry Potter book series, and is a sequel to Lippert's first book, James Potter and the Hall of Elders' Crossing. Written as a fan fiction project for Lippert's wife and sons, the novel is set twenty years after the end of the last official instalment in the series, Harry Potter and the Deathly Hallows, and describes the adventures of Harry Potter's eldest son, James Potter II, during his year at Alma Aleron, the American wizarding university. Lippert has written four books in the series, and plans to make it a five-book series.

Plot
James Potter II goes to the United States and Alma Aleron, the American wizarding school. During the year, he finds out the secret of a sorcerer, and tries to figure out who has switched the destinies of two universes, leading to major chaos.

Reception
The novel was as acclaimed as the first two novels, earning four out of five stars at Goodreads.

Sequels
The book is the second in the James Potter series:
 * Book 1: James Potter and the Hall of Elders' Crossing
 * Book 2: James Potter and the Curse of the Gatekeeper
 * Book 3: James Potter and the Vault of Destinies
 * Book 4: James Potter and the Morrigan Web
 * Book 5: James Potter and the Crimson Thread