Mason knows how lucky he is to have his longtime best friend, Ty, who shares his nerdy interests and sense of humor. In seventh grade, when both boys are attracted to Ava, the beautiful new girl who takes pride in her geekiness, they make a no-dating-Ava treaty to protect their friendship. Disaster strikes: a bully posts a photo of Mason and Ava kissing to the seventh-grade chat. Five years later, Ty still hasn't forgiven Mason d Mason has just been expelled from high school. But after a car accident, Mason is transported back in time to his seventh-grade year, and he has a chance to redo the mistake he most regrets and create a different future. Mason makes an engaging narrator, reporting events in a candid, fair-minded way. In the concluding chapters, when he suddenly returns to senior year with no knowledge of what has happened in the intervening time period, it's intriguing to watch him try to pick up the pieces while gradually discovering what he has changed or preserved because of his choices. A rewarding time-slip story.

A high school senior tries middle school again.Seventh graders Mason Rolle and Tyrus Ehrlich are more than best friends, they're platonic soul mates. That is, until cool New Yorker Ava Petrakis shows up at Pasco Middle School, befriends them both, and starts flirting with Mason. The boys attempt to create a bros-before-girls pact, promising that they won't ruin their friendship by trying to date her, but when Mason kisses Ava during a freak storm at the Harvest Festival, he sets in motion a chain of events that destroys their friendship and ends with his getting expelled from school in his senior year after accidentally assaulting his favorite teacher. A near-death experience mysteriously thrusts Mason back to that fateful middle school moment, and he tries to figure out both how he traveled through time and how he can fix his future. Watching Mason learn from mistakes and explore new aspects of himself (especially with a 17-year-old consciousness trapped in a preteen body) is vicariously satisfying, and the sheer fascination of his predicament will keep readers turning pages, anxious to find out if he succeeds. The story ends well but with no conclusive answers to the questions Korman tantalizingly dangles throughout. Main characters read as White.A satisfying story-right up until readers are left wanting more. (Fiction. 9-14)

Gr 47 Twelve-year-old Mason and his best friend, Ty, are obsessed with all of the same things: science, Star Trek , time travel, andunfortunatelyAva, the new girl in their class. After breaking their "non-Ava treaty," Mason finds himself without a best friend and has to forge his own path. Fast-forward to senior year of high school, where the rift between the two former friends leads to a disastrous incident that gets Mason expelled from school. Driving home, he gets into a car accident and wakes up in his 12-year-old body, just days before Ava arrives. Realizing that he has a chance to make amends and alter the future, he avoids Ava at all costs, joins the football team, and tries hard not to give away the fact that he knows the future. Eventually another head injury transports him back to his 17-year-old body, where he discovers which of his efforts have paid off. Right from the beginning, Korman's storytelling engages readers, who will root for Mason as he tries to preserve his friendship with Ty, keep his parents married, and prevent his dog being hit by a car. While there's not much new ground broken here, there are lots of laughs and chances to consider how people's choices in the present affect their future. Main characters are cued white. VERDICT Just plain fun from start to finish, this story will appeal to Korman's many fans and others who enjoy humorous fiction. Sarah Reid