Sophie discovers a mysterious crystal cave, but her friends don’t believe her, in this twelfth charming book of The Adventures of Sophie Mouse series! Sophie

Born the bastard son of a Welsh princess, Myridden Emrys -- or as he would later be known, Merlin -- leads a perilous childhood, haunted by portents and visions

New updated edition includes color photos of personal adventures and first group of explorers to enter into the Giant Selenite Crystal Caves of Naica Chihuahua,

Little Tatatuck is a root pulling gnome who dreams of working in the crystal caves. But he is small and weak and is told by the head crystal gnome that he must

Tag the owl, Skyla the squirrel, and Blaze the newly-hatched firehawk journey to the Crystal Caverns in search of the next piece of the magical Ember Stone. But