Learn about the mysteries of the Callandish Stones in Scotland at a lecture and book signing at Rainbow Stew on Saturday, June 15. Author and photographer Gwendolyn Awen Jones will discuss the Callandish stone circle with its cross formation. It’s the most intact stone circle in Great Britain. The event begins at 3 p.m. at Rainbow Stew, on the south side of the highway in Old Town Yucca Valley.