“Gathering Mist,” by Margaret Mizushima (Crooked Lane) Gathering Mist, by Margaret Mizushima, Crooked Lane Books Deputy Mattie Wray and her K-9 partner, Robo, generally solve mysteries in her small Colorado mountain town. But in “Gathering Mist,” Mattie and Robo are called to Washington state to find the missing daughter of a celebrity, just a week before Mattie’s wedding. The search turns sinister after one of the rescue dogs is poisoned. Then Mattie discovers the missing girl isn’t the only child who has disappeared in the area.