Artanis unslung his bow and nocked an arrow and let it fly at the closest enemy that was awake.
If there was no one awake, he cautiously searched them, alert for any unpleasant surprises.

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Thac0 (bow) 17: (1d20+1)[10]
Damage: (1d6)[2]
Alertness DC 14: (1d20)[7]