If it's just the hezrou, the fort can maybe handle it with some casualties but no serious operational consequences, but hezrous are only mostly solitary and you can't rely on demons doing what they mostly do. The commander gives the order to read off a Sending scroll calling for a strike team before he heads out to be ready to meet the thing in battle.
#11 calls in a strike team
it-takes-a-friend
Venn shifts obligingly, making it easy to read. (She's most of the way through the Acts of Iomedae, so it's about the Shining Crusade.)
it-takes-a-friend
This is a normal form of co-existing with wizards (and much better than "Txell eats angrily near her", honestly). Venn will make no comment.