Otis is a special tractor. He loves his farm and farmer. He particularly loves the little calf in the next stall, whom he purrs to sleep with his soft motor. The two become great friends, romping in the fields, leaping bales of hay, and playing ring-around-the-rosy by Mud Pond. But when the big yellow tractor comes to the farm and replaces Otis, he is cast away behind the barn. . . until the little calf gets stuck in Mud Pond. Then there is only one tractor--and it's not big or yellow--who saves the day. It's little Otis! Celebrating its 10th anniversary, this charming and unforgettable story about everyone's favorite little tractor includes a letter from New York Times bestselling artist Loren Long and never-before-seen sketches.