Sometimes, a day of ice fishing ends with nothing more than an unsolved mystery, as fish steal bait without getting hooked, and a frustrated angler heads home empty-handed. That seemed to be the scenario that was playing out for Gage Poulin of Corinth on Jan. 25, during a day of fishing on Moosehead Lake. And as often happens, all of the action was taking place at one specific hole. “I had been having flags on that same trap all day long,” Poulin said.