With a laugh and a quick incantation as if coming from both remaining images at once, the caster begins large sweeping gestures with her arms and the arcane words ring like harsh reminders of previous bitter memories. She casts fireball. A bright streak flashes from both the mage images pointing fingers and then blossoms with a low roar into an explosion of flame.

Cat closes her eyes tightly and feels a familiar presence, she's sure of it, it's the Cat god! Somehow, both are miraculously spared any damage whatsoever.
Narrowly missing the Ghoul, the flames extend to the group and when it dissipates, the remaining images have retreated to the farthest extents of the room.