When Brainiac traps Superman and Cyborg in a time machine that places them in a future world, the heroes must find a way to escape.

"The Histronauts travel back in time to the Viking era to forage for food, decipher runes, build beautiful burial boats, and learn all about a Viking raid"--Verso page.

Join Fiona and Finley as they travel back in time to visit Helen Keller and learn about the importance of sign language. Includes facts about Helen Keller and Ann Sullivan, comprehension questions and a writing prompt.

Join Fiona and Finley as they meet Fredrick Douglas and travel back in time with him. They experience his escape from slavery and observe how he became a leader in the fight to end slavery. Includes comprehension questions, a writing prompt and other resources.

It is 1972--a cold summer in Minneapolis, Minnesota. Tío has sent the monster hunters to find a dangerous werewolf. They need to stop it from hurting others--and from getting hurt itself. But is it really that dangerous? Join Marcus, Elena, and Fiona to find out. They explore downtown Minneapolis and the Minnesota State Fair. As they search for the werewolf, they learn about 1970s history and culture, and make friends with the theater folk of Minnesota...

Tío has an urgent mission for Jorge, Elena, and Amy. They must voyage to Harlem in the late 1920s. A fairy with a beautiful voice has been imprisoned. They must rescue her from her gangster captors before history learns of her and her fairy kind! Readers will learn about the Jazz Age and the Harlem Renaissance as they embark with the monster hunters on a thrilling adventure through jazz clubs, the streets of Harlem, and Central Park. Activities for...

So far the AstroNuts have failed to find a suitable planet, but NNASA has come up with a new plan: send the 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...