The Guardian finds one of Calus's Automatons while helping Caiatl.

Calus: Oh… thank you for this gift, Guardian. We truly are friends, aren't we? Caiatl has hunted me for so long; now, to feel her rage burn through the Underbelly, driven by Ghaul's brutalism, it is… intoxicating. Like the aroma of drippings hitting a crackling fire. An inescapable, primal draw. That is vengeance. Beneath me, as I ascend to peace… but still enjoyable to look down on. [chuckles] Your mission hangs in the balance. Caiatl is getting away from you. Fly. I wish to watch the chase.