The World Outside — Ronald E. Hudkins

Alex is a 10 year old boy who is very smart. As such, the wizard (Edain) who is in charge of the Boundless World Library comes to meet Alex. Together, they explore this secret library where stories of adventure, history and all sorts of things become exciting live in realities. Somewhere along all the fabulous journeys Alex finds a secret library door that changes everything. Alex actually gets to see his own future and as a result becomes a writer and important part of the Boundless World Library. Alex and Edain remain friends to this day.