GHOST TWINS: MYSTERY ON WALRUS MOUNTAIN

BY Dian Curtis Regan

*This is the ONLY edition authorized by the author, with updated text and new cover art*

A winter carnival brings Noah to Kickingbird. But he refuses to ski on the mountain and only “skies” in his computer game. When the Ghost Dog--and Robbie--end up inside Noah’s computer game, the twins have to figure out how to get them out—and how to convince Noah to face the real mountain again.

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