 The author of the "Bibliotheca", however, writes that Lycus was the one chosen regent after the deaths of Pentheus and Labdacus.Nycteus killed himself from shame when he discovered Antiope's pregnancy, and Lycus initiated the attack because he himself desired to punish her, successfully carrying her off after the battle.In either case, Antiope gave birth to the twins Amphion and Zethus on the way back to Thebes, at Mount Cithaeron.