Ankle is mentioned in the lore proposal for Frankie Incarnate. It's essentially a paraphrase of what appears on Ankle's page:
"Incarnate eventually realized that the Lift were steering through the Immateria trying to reach the Horizon. They immediately took up grilling again, now using the Lift’s homemade gyoza to help divine the safest path. Incarnate worked closely with Ankle Halifax, who was in charge of steering the ship. Before the Lift were nullified, Incarnate and Halifax were last seen spreading out a selection of meats, trying to decide which way to steer."
