Books like It's about time! by Dan Povenmire

Kazu Kibuishi’s graphic novel follows siblings Emily and Navin as they discover a perilous, fantastical house filled with robots, mysterious plants, and talking animals after the loss of their father.

On Christmas Eve, siblings Jack and Annie jetfire from their tree house into King Arthur’s Camelot, where a quest to the Otherworld unfolds.

Thirteen‑year‑old Ben and his sister Rachel discover two children cryogenically frozen in a 1956 bomb shelter in present‑day England and must both keep them hidden and help them adapt to modern life.

When the young twins Chris and Nan are thrust into a blended family, a discovery at the Salvation Army sparks a shared dream that transports them to 17th‑century England, where they must unite to survive a peril that threatens the Red Hart Inn.

Jack and Annie return to New Orleans on their second adventure, where they face real ghosts, discover jazz, and meet young Louis Armstrong while inspiring artists to spread joy.

Hannah Steele loves living on Pelling, a tiny island near Seattle. It's a little disconnected from the outside world, but she's always felt completely safe there. Which is why when she's asked one day to babysit after school, she thinks it's no big deal. Zoe and Oscar are her next-door neighbors, and Hannah just took a babysitting class that she's pretty sure makes her an expert. She isn't even worried that she left her inhaler at home. Then the shaking begins. The terrifying earthquake only lasts four minutes but it changes everything, damaging the house, knocking out the power, and making cell service nonexistent. Even worse, the ferry and the bridge connecting the kids to help―and their parents―are both blocked. Which means they're stranded and alone... With Hannah in charge, as things go from bad to dangerous.

Jack Sullivan and his two friends, along with their monster pet Rover, must uncover why the zombies are disappearing before the vanishing terror catches them.

Henry's Sister and the Math Battle

When Art Mumby and his sister Myrtle vacation at the Asteroid‑Belt resort Starcross, they are drawn into a wild adventure involving spies, time‑travel, and even man‑eating starfish.

Jonah has saved time itself, but in doing so, a twin brother, Jordan, is created—thrust into the same crisis as the original family. In this time‑travel adventure, Jordan must understand his new world and join the effort to prevent collapse.

Jackson, reunited with his father Courtney, Holly, and original time travelers, must halt Thomas and Dr. Ludwig’s dangerous experiments at Eyewall Headquarters, sparking a conflict that forces him to confront a war he was destined to fight.