Keros steps back five feet and lanuches a magic missile at the zombie, which loses an arm but seems otherwise nonplussed.
Grunlor rushes forward, swinging his axe at the next standing zombie and connecting--so well, in fact, that this zombie's head flies off into the woods.
Grinder sees there's only one zombie still up, and thinks he'd have a hard time hitting it, it being in melee. Selene, however, has no such compunctions, and puts a bolt smack into the back of the zombie, dropping it to the ground.
You now have six freshly re-killed zombies around you, and a mage who seems a bit hurt, and also is motioning you in his direction, saying, "The Hog's Back. Get yourselves to the Hog's Back; they've turned it into a bit of a safe-house! Follow me!"
For the moment, there are no other undead in sight.
OOC: Mechanics:
Keros: magic missile damage roll 1+1 = 2.
Grunlor: attack roll 11+5 = 16 hit; damage roll 7+3 = 10.
Selene: attack roll 9+6-4(melee) = 11 hit; damage roll 6.