Gr 4-7-This third title in the series is told largely from the point of view of Lion, a smart, skeptical 12-year-old who prefers trail bikes to horses. He and his 14-year-old sister, Bobbi, stumble into another mystery when they accompany their criminal-lawyer dad on a business trip to Willow Creek Ranch in B.C.'s Okanagan Valley where he is investigating a possible illegal land scheme on a protected agricultural reserve. A series of unexplained accidents, the reoccurring phantomlike visits of a young girl, and the appearance of crop circles in the ranches' north field all provide for the makings of an intriguing mystery. However, while Lion is a typical preteen in so many ways, he doesn't sound like your average kid. In fact, both youngsters' dialogue is quite sophisticated and, at times, distractingly stilted. Still, the plot contains ample twists, turns, and red herrings for the most voracious mystery enthusiasts.- Carol L. MacKay, Camrose Public Library, Alberta, Canada Copyright 2002 Cahners Business Information.