guasachtach Definitions (by source) Show all Stories from Keating's History of Ireland dangerous. Stories from Keating's History of Ireland. Author: Geoffrey Keating. Editor: Osborn Bergin. Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death dangerous, 184 Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Author: Geoffrey Keating. Editor: Osborn Bergin.