The Dreamers Awaken (Savage Worlds) (2011)

From the publisher:

In your dreams, endless rows of reptilian humanoids lay upon couches. Each body writhes in pain, but you know with the unerring assurance of the dream that all are sleeping. A wavering voice swirls throughout the room, rising and falling in intensity, finally resolving into words: “When will the dreamers awaken?”

More than a thousand years ago, the reptilian race of Harlass Orn inhabited the swamps surrounding Kith’takharos. Their greatest architectural triumph was the construction of nine Teleportation Towers. These towers also precipitated the Harlass Orn downfall, for the magic employed in large-scale teleportation allowed malicious extra-dimensional creatures called Veilwalkers to enter normal space.

The Harlass Orn sought shelter in a magically protected refuge called Tarass Shar Orn. Here they planned to hibernate until the Veilwalkers left normal space. But the Veilwalker named Dreamseeker infiltrated Tarass Shar Orn and transformed the dreams of the sleeping Harlass Orn into perpetual nightmares. Now the Dreamseeker slowly consumes their minds.