This event is in the "Children" group. This event is in the "All Ages" group. Mt Laurel Trick or Treat at the Library! All Day Children, All Ages Mt Laurel This event is in the "Children" group. This event is in the "All Ages" group. Oct 31 2026 Sat Mt Laurel Trick or Treat at the Library! All Day Mt Laurel Library Branch: Mt Laurel Room: Main Room Age Group: Children, All Ages Program Type: Other Event Details: No Registration. All ages. Trick or Treat at the library! We'll provide candy and allergy friendly non-candy options.