The Imagination Tree (en Inglés) - Graham P Hyman

Although Jack was very happy living with his Foster Parents he craved an adventure but only ever found it in the books he read.

He never imagined that one day he would receive letters addressed to the Author, magical letters, which would take him on an adventure of a lifetime.

Follow Jack's story as he sets out to deliver the letters. 

Watch his story unfold as he drives a sports car, sleeps in a camper van and captains a speed boat across the sea without realising the real source of the magic was within him all the time.