Now in board book! A young boy pretends to drive a train and takes his little brother along for an adventure in the mountains.

There are bridges to cross, tunnels to travel through, and mountains to climb so kids can hop on board before the whistle blows.

Told in simple words from a little boy's point of view, this spot-on board book celebrates a child's world of adventure and love of transportation vehicles.

A Christy Ottaviano Book