"Since his wife, Michelle, left seven years ago, Jeffy Coltrane has worked to maintain a normal life for himself and his eleven-year-old daughter, Amity, in Suavidad Beach. It's a quiet life, until a local eccentric known as Spooky Ed shows up on their doorstep. Ed entrusts Jeffy with hiding a strange and dangerous object--something he calls 'the key to everything'--and tells Jeffy that he must never use the device. But after a visit from a group...

When a thirteenth-century wizard confronts twenty-first century Boston while seeking his pet dragon, he is followed by a rival wizard and a very unhappy demon, but eleven-year-old Theodora Oglethorpe may hold the secret to setting everything right.

While helping her Great Aunt Melanie try to protect an Oregon redwood forest from loggers, thirteen-year-old Kate goes back five centuries through a time tunnel and faces the evil creature Gashra, who is bent on destroying the same forest.

In their latest time travel adventure, Fred, Joe, and Sam da Brooklyn meet Leonardo da Vinci and try to avoid becoming toilet scrubbers in a sixteenth-century Italian army.

After Ashley and Kristi find an antique doll buried in old Miss Cooper's garden, they discover that they can enter a ghostly turn-of-the-nineteenth-century world by going through a hole in the hedge.

The time machine: The time traveler invents a machine that propels him into the past and then to the distant year, 802,701 A.D. "Invisible man: Griffin is a brilliant and obsessed scientist who is dedicated to achieving invisibility. He takes whatever action is necessary to keep his incredible discovery safe and terrorizes the local village where he has sought refuge. Gradually he loses his sanity and, ultimately, his humanity."--

When Tor visits his grandfather's house, he finds a place where history is so alive that he walks right through it and learns to use his imagination along the way.

Charles Yu, time travel technician, helps save people from themselves in Minor Universe 31, a vast story-space on the outskirts of fiction. When he's not taking client calls, Yu visits his mother and searches for his father, who invented time travel and then vanished. Accompanied by TAMMY, an operating system with low self-esteem, and a nonexistent but ontologically valid dog named Ed, and using a book titled "How to Live Safely in a Science Fictional...