Eta certainly won't stop him, and she just motions toward the front door, because he doesn't need help anyway -- Swann's knocked out, and he knows how hard of a sleeper she is. Following him, Eta nods in a not-entirely-sincere way, and puts her hand on the door to close it behind him.

She wonders if it might be time to send another gift to Sinclair. Swann never remembers how many she's sent out or to whom. It goes on the list of things to do in the morning.