The Rhythm of Time, by Questlove and S.A. Crosby for Timeslip Tuesday

Yay me, for getting my Timeslip Tuesday act back together!  With a good one, no less- The Rhythm of Time, by Questlove and S.A. Crosby (middle grade, April 18, 2023, G.P. Putnam's Sons Books for Young Readers).

Rahim's parents are pretty strict when it comes to screen time (as in, there isn't any), but fortunately his best friend Kasia lives nearby, and is happy to share not just her computer but the brilliant gadgets she invents.  Like the cell phone she's built just for him, which though it looks like a clunky brick will still let Rahim check out the 20th century rap music he loves.

But it is much more than it seems.  In fact, it is linked to a secret government satellite, and interfaces with technology the feds definitely don't want falling into the hands of a couple of kids, and it sends Rahim back in time to 1997.  Before Kasia can figure out how to get him back, her house is raided by government agents who confiscate all her devices...

She's able to get them back (being brilliant), and tells Rahim, via the phone, not to make any changes to the timeline while she figures out how to get him back too.  But when Rahim makes friends with the kid who will grow up to be his own dad, changes come thick and fast.  Temporal collapse begins, with extinct animals and historical characters taking over the streets of 1997 Philadelphia....

It's a fun juxtaposition of Rahim anxious about getting home while having adventures with his dad to be like sneaking out to a rap concert and taking down a bully, and Kasia outwitting the feds back home.  But the timeline gets drastically altered, and when Rahim does return, his life has changed for the worse...and Kasia must work frantically to fix it and prevent utter temporal collapse with government agents breathing down her neck.  

It's lots of fun!  Rap music, a black girl STEM genius, dodos etc., and family dynamics make for a great combination!  The time travel goes down nice and easy, with a lovely combination of stress and humor.  The immediate problems may be solved by the end of the book, but there's set up for a sequel, which I'd love to happen.

The Rhythm of Time is eligible for the middle grade speculative fiction category of the Cybils Awards, so keep it in mind when the public nomination period opens in October.