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She turned to see her best friend in a pool of blood, dead.

All along the fire step was a pool of dark blood.

I saw a little pool of blood on the floor.

Then he saw the pool of blood under her head.

They had to step through the pool of blood to get inside.

She was found the next morning in a pool of blood.

How long would it be before someone found her body in a pool of blood?

This time, he came to with his face in a pool of blood.

How had that woman come to be on the floor in a pool of blood?

There was a small pool of blood just beginning to form under her head.