Dot and Jabber are mouse detectives with case to crack--if Jabber doesn't eat the clues first! They're determined to find out how a little oak tree grew in their field when there are no other oak trees around. They know it grew from an acorn, but how did the acorn get there? Full of curiosity and humor, Dot and Jabber track clues to solve a science mystery in this newly formatted Green Light Reader by Ellen Stoll Walsh, creator Mouse Paint. An afterword presents easy-to-understand facts about acorns and oak trees.