Airship 10 - Whirlwind monster

You fly over the open water near a fleet of muckduck boats. A little distance behind the boats you see some type of whirlwind monster heading in the direction of the muckducks. Do you spend 1 magic to try and stop the whirlwind monster before it catches the muckducks or do you continue on to the nearby island and see if you can find some resources?