...someone steps out of the shadows...
I have to agree with JC Hendee. Horses in Dungeons don't make sense. A mule I could imagine - although perhaps he should be put in the Cell or given to a Guard if those spaces are encountered. However, I personally don't think people should use either A) Rding Horse or B) Horse and Cart in the Dungeon. Hope we get an official ruling and **explanation** of whether or not this should be allowed. ( One of the main rerasons I like this game is that despie its occasional chaos, it *feels* like a coherent adventure world.)
Until an official ruling, my house rule will be: Bot cards may be taken into the dungeon, but must be left on the entrance square. They will scramble out tof the ruins and return to their master if she whistles for them upon returning to the Outer Region. .
....and with a faint "pft!' and a whisper of cologne, he didappears once again.