Paranormal researcher and author Chad Lewis will discuss mysterious creatures at 6:30 p.m. Tuesday, Sept. 23, at the Ripon Public Library, 120 Jefferson St. Lewis has traveled the world in search of legendary beings, including the Chupacabras of Puerto Rico and Costa Rica, the vampires and werewolves of Transylvania, the Tata Duende of Belize, the fairies of Ireland, the Loch Ness Monster and Bigfoot. The program is free and open to all ages. For more information, visit www.unexplainedresearch.com.