Releases by Matt Killeen

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Hardcover Book1
Paperback Book3

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Cover for Matt Killeen · Hidden (Paperback Book) (2026)

Release November 19, 2026

Cover for Matt Killeen · Hidden (Hardcover Book) (2026)

Cover for Matt Killeen · Orphan Monster Spy (Paperback Book) (2019)

Orphan Monster Spy (2019)

Cover for Matt Killeen · Orphan, Monster, Spy - Orphan, Monster, Spy (Paperback Book) (2018)

Orphan, Monster, Spy - Orphan, M... (2018)