a) Request an audience with their council under a truce.  Bring up their role in the battle against the Mage King, where humans, a demon, Qilin and and the Tuatha all managed to fight together.
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!

a) Head into the city.  Sure, you're an army of outlaws and invaders, with a demon and a few grass dogs to boot, but you have the sceptre in full now, and the heir needs to be found.  And soon.  With luck, that can be accomplished without the Seeker's Son attacking the city and killing at random.
b) You go to the Ranger's headquarters.  The army needs time to heal and you will be safe for the Seeker's Son there.  Mind you, you will also be trapped there if the Seeker's Son finds the headquarters.  It might not be able to enter, but it can certainly make getting out difficult.
c) Sylpha is right. The Seeker's Son is getting powerful.  You will need every single ally you can muster. The Tuatha fought for the empress before. They may be willing to do so again. And, they both know how to keep the Seeker's Son away and many of the healing arts.  Two birds, one stone, as they say.

What action will you take, Sky Road walker?  Vote!  Share!  And good luck!

a) "Yes.  He can be trusted."  After all, you don't know that he can't, right?
b) "Honestly I do not know."  It's the truth.  Sort of.
c) "I don't trust him. But we have no choice but to work with him." That is also the truth.

Vote!  Share!  Good luck!

a) Fight. You'll likely all die, but at least you'll die like heroes.  Of course, no one will be around to witness it, so no one will ever know.
b) Refuse the pact and continue to haggle, though the demon has given you the impression of being exceptionally stubborn and you're not likely to get far.
c) Accept the pact. Be it a test or a product of the demon's fear and friendlessness, you can't see any way around it.

A tough choice today, Readers.  Vote.  Share.  And good luck!