When Charlie receives a dire warning from the Land of the Dead about an impending catastrophe, he travels back in time to 1950s Cuba, where he unravels dark secrets and faces unspeakable evil in a race against time to save the world.

"Mason and Ty were once the very best of friends, like two nerdy sides of the same coin ... until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he'd give anything for is a do-over. But that can't happen in real life--can it? As a science kid, Mason knows do-overs are impossible, so he can't believe it when he wakes up from a freak accident...

So far the AstroNuts have failed to find a suitable planet, but NNASA has come up with a new plan: send the four animal astronauts back through time on Earth where they are to contact early homo sapiens and somehow set them on a path to a sustainable future--trouble is, humans seem inferior to many of the other species (especially the wolves), so the AstroNuts come up with a Survival of the Fittest Olympics, hoping that with a little help the humans...

"It's a cat! It's a superhero! It's a...Taco Time Machine!?!? Uh-oh! Mindy's dad, Professor Microbe, is lost in the time space continuum. It's up to Max and Mindy to save him. But time is tricky once you start messing with it and-oops! -Max may have accidentally undone his and Mindy's very first meeting! That means no Space Meatball. No Science Kitty. No Cat Crusader. No best friends forever?!?! Ack! This time it's not just Kittyopolis that's in trouble,...

"A mysterious jukebox, old vinyl records, and cryptic notes on music history, are Shaheen's only clues to her father's abrupt disappearance. She looks to her cousin, Tannaz, who seems just as perplexed, before they both turn to the jukebox which starts ... glowing? Suddenly, the girls are pulled from their era and transported to another time! Keyed to the music on the record, the jukebox sends them through decade after decade of music history, from...

Told in their alternating voices, twelve-year-old neighbors and former best friends Cora Hamed and Quinn McCauley begin working together to open a wormhole so they can travel through time to prevent the school shooting that resulted in the deaths of Cora's sister and Quinn's brother.