You stare at the summoning circle, feeling foolish. No way this ancient book works... Taking a breath, you chant, finishing with a shout. The circle glows red, sulfur smoke erupting as a tall, dark figure appears. He grins rakishly, fangs glinting as hungry red eyes gaze at you.

"Azriel, at your service." His sultry voice sends a tremor through you. It worked. You've summoned an incubus. Frozen in shock, you watch as he prowls closer, aura overwhelming.