Tim Gregory

"Meteorites have long been seen as portents of fate and messages from the gods, their fiery remains inspiring worship and giving rise to legends that have persisted for millennia. But beyond the lore, meteorites tell an even greater story: that of our solar system. In Meteorite, geologist Tim Gregory shows that beneath the charred crusts of these celestial stones lies a staggering diversity of rock types. Gregory explores the world of meteorites to...

When young Jim Hawkins finds a mysterious map in a dead sailor's sea trunk, it marks the start of a thrilling treasure hunt and a very dangerous adventure. Accompanied by the local doctor and squire, he sets off on the high seas as a cabin-boy, determined to find the buried hoard. But they are not alone in their quest, a band of pirates -- led by the enigmatic, one-legged Long John Silver -- will stop at nothing to take back what they believe is theirs....

The Boxcar Children are snowbound in a spooky old log cabin.

"Years ago, a man disappeared from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery! Adapted from Gertrude Chandler Warner's story of the same name, this new version introduces young readers to a Boxcar Children classic." --

While visiting the Outer Banks of North Carolina, the Aldens see a mysterious wild horse that may be a ghost.

The Aldens accompany their grandfather to his class reunion and investigate the possibility of a buried Civil War treasure, and of a ghost in the bell tower, at Goldwin University.

Teenaged detectives Joe and Frank Hardy uncover a plot to sabotage a ski resort.

While attending an amusement park under the new ownership of their friend Daisy, Joe and Frank investigate the disappearance of a patron who was last seen riding a hit attraction, an event that has threatened Daisy's family's livelihood.

When a sinkhole opens up and swallows one of Bayport's historic statues, Frank and Joe suspect something--or someone--shady at play. They jump at the chance to investigate ; Joe as a member of an urban exploration club, and Frank as photographer for the school paper. But in the thick of their search, the boys stumble upon an entire underground city that's been abandoned for years. Now the city is home to a cultish band of criminals who plan to take...

The adventures of the Alden family as they ride across country in a caboose that has a strange history--or is it a mystery?