Levithan, D: Mysterious Disappearance of Aidan S.

A well-paced story about the collision of realities in the vein of Laura E. Weymouth and Seanan McGuire.   Publishers Weekly, starred review 

[A] superb story . Levithan s first book for middle-grade readers is an unqualified success. Booklist, starred review

Engaging . the matter-of-fact inclusion of LGBTQ+ characters is noteworthy. A thought-provoking title for sophisticated readers. Kirkus Reviews

A stellar novel that deftly examines the uncomfortable reality that not everything has a satisfying answer. For example, sometimes people go away and we re lucky if they come back, and we may be better off focusing less on where they ve been but on the fact that they ve returned. The Bulletin

"An insightful story, with echoes of Narnia, that will appeal to thoughtful and sophisticated readers.   School Library Journal