Ah, canteens. A good idea, actually, and for once Adrasteia doesn't mind taking up the rear. She's not a glass cannon by any respect but getting knocked in the solar plexus would effectively stop any casting she'd managed, so.

She gives Tony and Val a salute and keeps her stave in hand.

What she does, as she drinks her water and tries not to empty the canteen she's carrying in one go, is try to get a sense of the dimensions of where they're headed, be it to a room or just another hallway, plus reaching with her Warden senses to try and tell if anything dangerous and Blighted is waiting for them ahead.