"Geology meets treasure hunting with this field guide to rockhounding! If you've ever kept an interesting rock or shell, bought a polished stone from a gift shop, or even just enjoyed a 'gram of a really cool crystal, congratulations! You've already experienced a rockhounding adventure! Rockhouding for Beginners shows you how to take your rockhounding to the next level, providing everything you need to know from tips for finding local sources for...

In 2012, a New York auction catalogue boasted an unusual offering: "a superb Tyrannosaurus skeleton." In fact, Lot 49135 consisted of a nearly complete T. bataar, a close cousin to the most famous animal that ever lived. Eric Prokopi, a thirty-eight-year-old Floridian, was the man who had brought this extraordinary skeleton to market. A onetime swimmer who spent his teenage years diving for shark teeth, Prokopi's singular obsession with fossils fueled...

The Aldens take part in a hunt at a gem mine and discover that someone is out to sabotage the contest.

"Tells the story of the feverish race between two ... competitive scientists--Edward Drinker Cope and Othniel Charles Marsh--to uncover [dinosaur] fossils in the newly opened Wild West. Between them, they discovered dozens of major dinosaur species and established the new discipline of paleontology in America. But their bitter thirty-year rivalry--a 'war' waged on wild plains and mountains, in tabloid newsprint, and in Congress--dramatically wrecked...

"I'm Sherlock Bones. Who is Sherlock Bones, you ask? Well, I don't like to brag, but my trusty side-kick Watts says I'm the greatest detective in our whole museum. Don't you, Watts? Watts--? You might not be able to hear Watts, because he's technically a stuffed parrot, but I always know what he's thinking. And right now he's thinking: can we solve the mystery of the missing Blue Diamond and save the Museum of Natual History before it's too late?"--Provided...