Well, that was creepy. As it should be, really. Tinkerbell has died off-stage, and Peter has forgotten killing Captain Hook. "I forget them after I kill them". Peter very almost kills Wendy's daughter with a dagger, but chooses not to after realising *she* can be his mother now instead of Wendy. Wendy lets this happen, and is happy to, I suppose because as an adult now she can more easily see how lonely this whole thing is. Also cycles, you know. 

It's a bit overly expository, and doesn't add anything, but it's clearly not supposed to. This was written to be performed one time, as a gift to the actress who'd originally played Wendy. In that context, it's quite lovely. In as much as Peter Pan can be lovely. Freaks me out really.