According to the card text from the avatar upgrade, after Captain Bones sails his ship off the eastern or western edge of the map, at the start of his next turn he," must re-enter the map from the opposite side." Further down the card, "the rear of the ship must be the same distance from the southern edge of the map that it was before it sailed off the map."

What if the Revenge is blocking your re-entry? Does Captain Bones push the Revenge (east or west) to allow sufficient room?

If there´s nothing specific on the upgrade card, I would push the Revenge away from the edge, to make the battle playable at all.

Obviously another hole in the SoB rules we missed for the FAQ proposal doc...