by T. Scheirer (Illustrator), Peter Vogt (Author)

Johann is back with his grandparents on the Chesapeake Bay, hoping to make some great fossil discoveries. Once again, though, he runs into danger - not from a giant monster shark, but from some modern-day fossil thieves...who might be capable of anything. And in trying to solve the case, Johann discovers something else, long buried, that's beyond his-and his Grumpa's-wildest dreams.