Close on the heels of its hosting of Halloween pop-up Black Lagoon, San Antonio's Three Star Bar is once again undergoing a transformation. This time, the self-described "dad bar" located near the Pearl will become Krampus Cove for the holiday season, celebrating the horned, folkloric Christmas demon who punishes bad children, organizers said. Starting Dec. 6, the day after many in Europe celebrate Krampusnacht, Three Star Bar will introduce its latest pop-up concept and celebrate the yuletide tormentor until Dec. 25.