Magic Tree House (A Merlin Mission) #43: Leprechaun in Late Winter
(includes announcement for #44: A Ghost Tale for Christmas Time (Coming in September 2010))
Magic Tree House Research Guide #21: Leprechauns and Irish Folklore
(includes announcement for Research Guide #22: Rags and Riches: Kids in the Time of Charles Dickens (A nonfiction companion to A Ghost Tale for Christmas Time) (Look for it September 2010!))