 In 1908, she worked for the first time with Gregorios Xenopoulos, who wrote her the theatric play "The Red Rock" (Ο Κόκκινος Βράχος), based his short novel written of the same name.The play was of huge success, and was repeated by Cybele's theatrical group for many years to come.Xenopoulos continued to write her at least one play a year, until 1925.