During the the annual "Fun With Camping" event at Bayport State Park, Frank and Joe investigate when tent decorations start to go missing and they find mysterious footprints around the camp

"Frank and Joe are excited to go camping with their friends in Bayport State Park for the annual "Fun With Camping" event. They are ready for hiking, bonfires, and s'mores--and especially for the tent decorating competition, which the boys are determined to win. But just a few nights into the trip, decorations start to go missing. First Frank and Joe hear strange noises outside their tent. Then they see a set of unique footprints at the campsite. It seems like someone--or something--is out to sabotage the decorating contest. Can Joe and Frank figure out who the campsite culprit could be?" --,from publisher's web site