RANGELEY — Author Paul Doiron will sign books from 11 a.m. to 2 p.m. Saturday, Aug. 12, at the Outdoor Sporting Heritage Museum in Oquossoc in support of the museum. All of his novels in the Mike Bowditch game warden mystery series, including the latest, “Knife Creek,” will be available to buy. Doiron’s books sell out every year at this event, museum officials said.