What comes over him isn't exactly a smile, but there's some mirth behind it. This is one promise he can keep; one way he can make things right. He pushes his face in against Peter's, tears spilling over the man's cheek before he can stop them. It's either let go now or be torn away, his last comfort pulled from his arms by the coming day. Adam buries his face in Peter's hair, holding fast and clutching so tightly his arms shake. If the dawn wanted Peter, it would have to take him by force.