WhatsHisFace by Gordon Korman; 2018. Hardcover (Ch-FIC)

Gordon Korman's standalone novel is a fun, funny ghost story about a nobody kid who becomes a somebody while helping a ghost right a wrong from the past. When 12-year-old Cooper Vega moves for the third time in five years, he receives a state-of-the-art smartphone to help him stay in touch with old friends. He's had phones before, but this one is buggy and unpredictable. When a boy named Roderick Northrop communicates with him through the phone, Cooper realizes that his phone isn't buggy at all: the thing is haunted!