Specifically he wants to see if Lily or someone can make it small after they stage a major attack on it, get its mind calmed, and get it out to the harbour, get out of this joint.
I think with all this undead stuff Emilia really doesn't want to know what may happen to a dragon once it's killed near them (though she'd have considered it), and would be very down with Wei Wuxian's thoughts of trying to scale its size.
SMUGGLE THE DRAGON OUT TO THE SEA
This will need you to capture the dragon, furtively smuggle it out in a very efficient manner, at a time when everyone is looking for this creature.
Have we mentioned, beware consequences?
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+ 1
+1
+1
+1
+1