Obviously Arthur has gone into King mode, and will be trying to co-ordinate Everything Ever - getting people to safety, fighting monsters, getting people to supplies etc etc etc. He'll also be out there fighting monsters with some sort of sword I'm going to say he's had all along, because, well, he's Arthur. He needs a sword.
Hermes is mostly going to be worried about Beau, and secondarily David and Aidan. As much as he would be INCREDIBLY USEFUL with his teleporting, he'll probably hole with Beau and keep her safe~
Eris thinks this is AWESOME and has gone out to play with the monsters.
Erato is chilling with Andrew~
Sif is... stuck in a tree. And will be sticking to Theodore after this.
Achilles is going to go kill shit. Probably with Arron and Rex once I make him comment there.