"Stink wants to make the find of the century! He's on a dig, dig, digging quest in his backyard to find a tooth from a saber-toothed cat, otherwise known as a Smilodon. Why not? Two kids in Michigan found a mastodon bone in a backyard stream, and a girl in Great Britain found a pterosaur bone. It could happen! But Judy thinks the chances of finding a saber-toothed anything in the Moody backyard are one in a gazillion million! Will Stink make a discovery before their whole backyard caves in?"--Provided by publisher.