It was a dark and somewhat stormy night, so many of the Mount Desert Island Halloween celebrations moved inside. Libraries were open, and the MDI YMCA in Bar Harbor offered space for families who traditionally hand out treats from their homes to set up tables there for warmer, drier trick or treating, though many also braved the weather and went door to door. The Trunk or Treat organized by Thurston's Lobster Pound moved indoors to the American Legion Hall in Southwest Harbor.