I lead. It occurs to me, can I wear the shield while using the bow? Worst case, I could fasten one to the other with rope or nails or something, but that's a pretty standard thing to be able to do actually.
No and yes. On the one hand, you can't use a shield effectively while firing a bow, and it seems like a pretty heavy extra burden for the bow arm. On the other hand, I'm not going to remember to give you -1 AC whenever you are shooting a bow, so ruleswise the thing is moot. Let us both imagine whatever we prefer.
Training the mink to obey voice commands would probably take a long time, and be even more difficult without teaching it in a practical situation. Not something you can do in a day. What are you going to call the mink, by the way? Appa?
Saucix opens the third door in the mural room. Behind it is a narrow corridor that continues straight ahead for a bit before turning left.