Could be trying to thin numbers. Wilders who go out to investigate things and don't come back means fewer Wilders.

[ Assuming any were died or taken out of commission, but perhaps whoever set it up wasn't expecting the new arrivals. ]

But that's all a guess.

[ She brushes some hair behind an ear, scowling when some of it wraps around one of her new claws. ]

If it were a trap they were ready to spring in person, I think they'd have done it already, when more of us were in the tunnels.