Skellig (Almond)

Skellig 
David Almond, 1998
Random House Children's
192 pp.
ISBN-13: 9780440416029

Summary
Young readers will by enchanted by this magical tale of friendship and family: Michael was looking forward to his new house and neighborhood, until his infant sister became very ill. Now his parents are constantly frantic, the scary doctor is always coming around, and Michael feels helpless.

When he goes out into the old rickety garage, he comes across a mysterious being living beneath spider webs and eating flies for dinner. This creature calls himself Skellig, and over the weeks Michael and his new friend Mina bring Skellig out in to the light, and their worlds change forever. (From the publisher.)