Graveyard Rats by Robert E. Howard

Saul Wilkinson awoke suddenly, and lay in the darkness with beads of cold sweat on his hands and face. He shuddered at the memory of the dream from which he had awakened.

But horrible dreams were nothing uncommon. Grisly nightmares had haunted his sleep since early childhood. It was another fear that clutched his heart with icy fingers--fear of the sound that had roused him. It had been a furtive step--hands fumbling in the dark.