Available for purchase in the Newburyport, Massachusetts, area: Jabberwocky Bookshop, The Cottage Plum Island, Custom House Maritime Museum, Mass Audubon Joppa Flats Education Center, Surfland Bait and Tackle, Lively Kids

Portsmouth, New Hampshire: RiverRun Bookstore

South Berwick, Maine: A Little Something

Also available on Amazon: The ABCs of Plum Island, Massachusetts; B is for Beach Plum