"Everyone come quick! A demon's attacking!" Eponine calls or to those still inside, raising her hammer to smite the thing whilst manoeuvring for an advantageous position.

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Smite Evil (1d20+7)[12](+1BaB, +2STR, +2CHA, +2flanking)
Damage (1d12+4)[6](+2STR, +2lvlx2) bludgeoning