Another head spawned, naturally.

The three chittering heads vomited forth rays of flame, two at Karin, one at Gnoryc. The furball was struck while the tits-with-mage-attached managed to avoid one ray but not the other.

The ghost itself slammed its fists into Eros, twice setting the poor girl on fire.

12 damages to Gnoryc!
12 damages to Karin!
25 damages to Eros!
Eros can extinguish herself as a full-round action. Otherwise she takes 2d6 points of Fire damage every round (on her turn, for simplicity's sake).