by Hal Erickson
synopsis
Kathleen Nolan guest stars as Gerry O'Toole, who shows up at the Stephenses' doorstep claiming to be Darrin's relative from Ireland. But Samantha knows better; Gerry is really an Irish wood nymph, determined to plague Darrin because of the sins of his ancestor, who killed Gerry's master, Rufus the Red (Michael Ansara). To set things right, Sam goes back in time to prevent the deadly deed. Written by Ed Jurist, "A Most Unusual Wood Nymph" originally aired on October 13, 1966.