New York Times bestselling author-illustrator Gabriela Epstein returns with another original action-packed graphic novel based on the hit Nickelodeon animated series, where Danny will have to reckon with past ghosts and past grudges. After the events of Danny Phantom: A Glitch in Time, Danny Phantom is public enemy number one, and Casper High School has revamped its curriculum as they believe that ghosts are once again a danger to the town. While Danny struggles to find a way to implement his new knowledge of what ghosts are to help them, Valerie Gray is thriving as the best ghost hunter at school. But when Wulf, Danny's old ghost friend, arrives looking for another ghost wolf cub, Danny and the gang must help track down this cub before their ghost hunting classmates get to it first. Can Danny help protect these ghosts before they get caught, or will his past grudge with Valerie result in his end? This all-new original graphic novel from New York Times bestselling illustrator Gabriela Epstein continues the Danny Phantom story with this canon story that will satisfy both new and old fans of the Nickelodeon franchise.