Switcharound

"Lowry fans will not be disappointed." -School Library Journal   Caroline and J. P.'s father has asked them to come visit him and his new wife in Des Moines, Iowa. They don't really want to go, but they also don't have a say in the matter. Upon arriving, they discover they each have unexpected and unpleasant responsibilites. Caroline has to babysit their baby twin sisters and J. P. is forced to coach baseball to a bunch of six-year-olds.  The two decide to call a truce in their continual sibling warfare and help each other out.
They soon discover there's strength in numbers-and a little responsibility isn't always a bad thing. They agree to work together, but that doesn't mean they won't cause a little trouble. Enemies to Allies: Caroline and J. P. have always been enemies. But a summer stuck in Des Moines forces them to form the "Tate Détente" and team up for the first time ever. A Hilarious Switcharound: She's stuck babysitting.
He's stuck coaching the worst baseball team in history. Their only hope is to work together and maybe, just maybe, get a little revenge. Blended Family Chaos: Navigating a summer with their goofy dad, his new wife, a six-year-old stepbrother named Poochie, and a pair of mischievous twin babies. Classic Middle Grade Humor: A funny and heartwarming story from Newbery Medalist Lois Lowry about family, responsibility, and finding out your annoying sibling might not be so bad after all.