About Gale Galligan Books by Gale Galligan Sonic the Hedgehog, Vol. 17: Adventure Awaits by (author) Ian Flynn, Evan Stanley & Gale Galligan illustrated by Thomas Rothlisberger & Tracy Yardley Ages 9 to 12 Grades 4 to 7 Sonic the Hedgehog: Seasons of Chaos by (author) Ian Flynn, Gale Galligan, Griffin McElroy, Justin McElroy & Travis McElroy Ages 9 to 12 Grades 4 to 7 Sonic the Hedgehog 30th Anniversary Celebration: The Deluxe Edition by (author) Ian Flynn, Gale Galligan, Justin McElroy, Travis McElroy & Griffin McElroy Ages 9 to 12 Grades 4 to 7
