b) Demand an audience with their council. Remind them that the Mage King is returning, and make certain they know that if they do not decide to aid you and your quest fails, the end of the world is their fault.
c) There will be no reasoning with these people. Draw your weapons and fight. You have the Hunter's horn. Use it to call the Wild Hunt to your aid.
Choose well, Sky Road walker! Vote! Share! Good luck!