THE RHYTHM OF TIME

In this entertaining novel centering Black tweens by noted musician and filmmaker Questlove and bestselling author Cosby, the gift of a supersmart phone is a godsend…until it’s very much not.

Philadelphia seventh grader Rahim Reynolds wants to be a rapper like Four the Hard Way, his favorite ’90s group, but if he’s not getting bullied at school, his history professor father’s strict anti-tech, all-books policies make things hard at home. Bestie and home-schooled neighbor Kasia Collins, in contrast, lives in a tech-filled wonderland and is the genius behind most of her home’s innovations. A space-time traveling phone that uses secret government satellites is just the latest invention she tests on her occasional guinea pig, Rahim. When he accidentally dials himself into 1997, Kasia never doubts her ability to get him back, but time is very literally working against them as Rahim disregards her warnings and interferes with almost everything. He quickly befriends his preteen father, sneaks into a Four the Hard Way concert, changes familial and global history, and causes a wormhole that wreaks havoc. Kasia, meanwhile, must deal with government agents and two sets of worried parents while figuring out how to get Rahim home. A semisuccessful return to the present quickly reminds Rahim of how good he had it before. The conclusion of this charming collaboration sets the stage for larger stakes in future adventures. Art not seen.

Time-travel hijinks and ’90s rap references abound in a fun and funny series starter.