The second book in The Hidden series, magnificent fantasy-adventure from the bestselling author of The Keepers.

Katie is flying to Florida to visit her grandmother, but she has never been on an airplane before.

An ivory gull carved by Ezra Brown in 1832 brings luck to four generations of his family as they travel on the seas and in the air.

When twelve-year-old Josephine falls through a worm-hole in her garden shed into another time and place, she realizes the troubles she has at home are minor compared to what she has to tackle now in the world where she has landed.

A glitchy time machine strands a bumbling janitor and a brilliant scientist in the distant past, and they must find their way home before they're attacked by angry cavemen or eaten alive by a saber-toothed tiger.

Patrick and his cousin Beth travel back in time to ancient Rome, where they meet Telemachus and help put an end to the spectacle of gladiators fighting to the death.

When a teacup from the special collection of Titanic artifacts transports Tucker and Maya back to the day the Titanic sunk, they set out to find their new friend Liam and his family--can they convince the captain to change the ship's course and rewrite history before the ship hits the iceberg?

"After hearing stories from his mother about growing up in Korea, a young boy looks forward to finally going to her hometown for a visit. But what if it's not the same as it was when Mommy was little?"--

Michael Evans and his paleontologist father have been invited by the mysterious time-traveling Shannon to visit the complex built around an underwater portal to the Jurassic period, but Mike uncovers a plot to steal one of the dinosaurs--and then Shannon and her trouble-making brother Jeff disappear through the portal.

Mr. Carter is getting a newspaper award in New York City, so Kylie Jean and her family set out across the country on a driving vacation.