DM: Into the Jaws of Darkness

And then it comes.

A horribly deformed humanoid, hairless and emaciated, lurches out of the shadows. Its unnaturally long arms end in three-fingered talons, and its legs bend like those of a dog. A withering network of bulging veins form dark blue patterns across its pallid skin. But worst of all is its face - its nose is little more than a pair of slits and its eyes are bulging and red. The lower jaw splits in half at the chin into two wretched arms that end in tiny three-pronged hands to either side of an open, needle toothed open gullet with a long, pointed, searching tongue.

Its pale face is stained with the glistening sheen of blood. The things spreads its arms towards you, tongue searching out in the light, sensing your presence. Its red eyes darting across you all, judging its prey. It bellows a high, thin screech, and then pounces forward across the tunnel towards you.

Gryffin recognizes the beast at once. It is a Sinspawn, a horrid beast of legend. They were created by the ancient Runelords near the end of the Thassilonian rule. Runelord Alaznist, the Runelord of Wrath, created them as her foot soldiers. You have read of them before in your studies, but you had thought that they would all have died out long ago, what with the centuries that have passed since the old empire faded.