Adventurers Wanted

This book is about a boy named Alex,who dosen't enjoy the gift of life. He lives with his step dad. His mother is dead, he never even know his father. One afternoon, in Alex's frustration, he goes for a walk. On this walk he discovers a bookshop with an unusual sign in the window. "Adventurers wanted" the sign says. Curiosity brings him inside the shop, where he is pulled inside a magical world of dwarves,elves,and adventurs. Of which he knows nothing about.