The spy managed to get back to Conchobar, and told him that Deirdre was as beautiful as ever. Conchobar called his warriors to attack the Red Branch house where Deirdre and the sons of Uisnech were lodging. Naoise and his brothers fought valiantly, aided by a few Red Branch warriors, before Conchobar evoked their oath of loyalty to him and had Deirdre dragged to his side. At this point, Éogan mac Durthacht threw a spear, killing Naoise, and his brothers were killed shortly after.