Take out the guard silently

From Create Your Own Story

You look around and spot a stone lying on the ground beside you. You pick it up and test it;s weight before throwing it towards the sentry. Your aim is true and with a quite thud the guard crumbles to the ground like a rag-doll.

You smile and move swiftly towards the cave.

Do you:

Silence the sentry for good with a strike to the head with your hammer

Leave the unconscious guard where he is and hurry into the cave