Not the locks where I am from. If a form of magic can change our very species, likely among other things, then there would be ways to cheat even a magic 'lock' if one is creative enough. In this case, however.. [A pause, then a sigh.] No, it is as you said. I do not think locks, magical or otherwise, would be helpful. Who among us has such intimate knowledge of any of these named beings to isolate them from entering but allow others who are merely similar, like the summerling fae we currently are being hosted by?

[She sounds a touch put out. A diamond, having to do her own fighting?]

Weaponry and early warning it is, I suppose.