The front of the installation had an indentation artistically carved to look like a natural curve in the rock, but it was actually shelter for the metal hatch that was currently open. At the moment, it would have been better for the hatch to be closed, but when Ratthi and ART’s humans Iris and Tarik ran in there, they hadn’t had time to close it behind them before Hostile One had jammed one of its long metal limbs through.