Not long after Portia Bennett and her mother move to a new town to start their lives over, Portia discovers a huge purple monster she names Jellaby and enlists the help of fellow student Jason, as they two search for a way to find their new friend's true home--a search which may connect Portia to her missing father.

Jellaby 2014, Stone Arch Books

ISBN-13: 9781434296016

Hardcover

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Jellaby 2008, Hyperion Books for Children, New York, NY

ISBN-13: 9781423103035

Trade paperback

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Jellaby 2008, Hyperion Books for Children, New York, NY

ISBN-13: 9781423103370

Hardcover

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Jellaby 2008, Turtleback Books

ISBN-13: 9781417797172

Turtleback School & Library edition

Hardcover

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