From The Heretic Knowledge Vault
Hortense is a nun in the Reformed temple in Saus. She hosts Argus and Brother Miguel when they gate into town in pursuit of the mysteriously fugitive Father Egbert and stay at the temple overnight, before continuing on their way to Heamish. About all we really know of her is that she is of a rather severe, ascetic countenance, with a disposition to match; however, she treats Argus and Miguel civilly enough.
With the action having moved south, we probably won't see her again, but you never know.