Title: The Case Of The Wild Wolf River
Description: A Montana ranch is robbed everytime there is a full moon.  The Trenchcoat Twins are visiting a ranch in Montana where three Native American artifacts have disappeared, one on each of the past three full moons.  Now there is only one artifact left--a large carving of a wolf--and Mary-Kate and Ashley have one night to solve the mystery before the next full moon.  As the case takes Mary-Kate and Ashley down Wild Wolf River's whitewater rapids, the twins discover they might be in over their heads.
Subjects: Juvenile fiction, Detective and mystery stories, Mystery and detective stories, Children's fiction, Twins, fiction, Olsen twins (fictitious characters), fiction, Montana, fiction, Indians of north america, fiction