The cobalt mask

"The night the Cobalt Mask was stolen from the museum, everyone who was anyone was there: the legendary investigator, the convicted criminal, the wealthy businesswoman, the jealous cop--and twelve-year-old Ben. Ben's uncle--the famous detective Owen Quinn--has been hired to find the mask. But Ben and his friends quickly launch their own investigation, following a trail of clues that lead to a tangled web of secrets and lies. Everyone's hiding something, including Uncle Owen--and now he's on the run. Is Owen the culprit? Can Ben and his friends figure out what's going on before it's too late?"--Back cover.