Months of preparation, but the rituals were ready. Offerings of blood poured down upon the sacred altar, and the portal to the great nether-beyond opened.
The high priest smiled. Power beyond comprehension was his for the taking. He only had to steel himself.
He stepped toward the portal, thinking himself ready.
He was incorrect.
Tentacles snaked out, ensnaring him. Before he could even scream, he was sucked into the portal, which closed behind him.
The coven stared at one another, wondering what they ought to do.
It was, apparently, true what they say.
Never summon anything bigger than you are.