Donate blood and get a complimentary ticket to Sea World’s HOWL-O-SCREAM. The blood drive is hosted by Christ the King Episcopal Church on SatÂurday, Sept. 21, 9 a.m. to 2 p.m., in the parking lot at 1460 Midway Drive in Alpine. Schedule an appointment by calling (619) 400-8251. Walk-ins are welcome.