WHAT’S HAPPENING TODAY: WEDNESDAY, JULY 21 Pacific Beach/Mission Beach • “Heaven in the Midst of Hell,” 7 to 9 p.m., Open Door Books, 4761 Cass St., U.S. Navy Chaplain, Commander Sheri Snively, discusses her book. (858) 270-8642. • PB Town Council meeting, 6:30 p.m., PB Women’s Club, 1721 Hornblend St., (858) 483-6666 La Jolla • Complimentary lunch and lecture for seniors, 10:45 a.m. to 1:15 p.m., Lawrence Family Jewish Community Center Jacobs Family Campus, 4126 Executive Dr; Stein institute lecture on aging and well-being; (858) 362-1141, free, transportation provided • “Mad Science: Making a Splash!” 4 p.m., La Jolla Library, 7555 Draper Ave.; (858) 552-1657, free • Pajama story time, 6:30 p.m., La Jolla Library, 7555 Draper Ave.; (858) 552-1657, free WHAT’S HAPPENING TOMORROW: THURSDAY, JULY 22 La Jolla • Mini-Summer Camp for Tweens, 2 to 4 p.m., Warwick’s Books, 7812 Girard Ave.; make photo albums, friendship bracelets, and decorate cupcakes; (858) 454-0347, ages 9-12, $12 registration • Gerald Clayton Trio concludes Farrell Family Jazz series, 7:30 p.m., La Jolla Athenaeum, 1008 Wall St., (858) 454-5872, ljathenaeum.org, $19 members, $24 non-members