Dream Eaters

Goblins don't make good house guests.

Jonathan Dunn can never seem to get well and the doctor's don't know what's wrong. But when two elusive visitors show up he is suddenly the portrait of health. Long afternoons spent with his new friends bring him all the childhood joys that have been denied him all these years. But only so long as his mother sleeps, because as soon as she wakes up his friends disappear and his sickness returns. 

How can Jonathan choose between his mum and his health?