sentences:  The Old Ones reveal that they will keep Matt alive but torture him for the rest of his life as revenge for wounding Chaos in Nazca.As the Old Ones prepare to kill Richard in front of Matt, but Richard finally realizes the purpose of the sacrificial tumi knife given to him by the Incans, and stabs Matt in the heart so his past incarnation can complete the Five.Scott then feels guilty after his actions and Matt's sacrifice.