The Serpent Mound Star Knowledge Equinox Peace Summit “Return Of The Thunderbird” offers three days of family-friendly ceremonies with indigenous elders, musical performances through song and drumming, workshops, presentations and other spiritually transformative experiences. It takes place from Friday, Sept. 22 through Sunday, Sept. 24 from 9 a.m. to 9 p.m. at the Soaring Eagle Retreat, 355 Horner Chapel Road, Peebles. The location is adjacent to the mound.