"In all my studies, I must say that the most intriguing was my interview with the desire demon. That the creature was willing to speak with me was a sign that this was no mere monster, mindlessly driven by its nature, but rather a rational being as interested in me as I was in it. It took a form that I would call female, though I had no doubt that it could appear otherwise. I wondered if it appeared as it did because I wanted it to or because I expected it to. She... and, indeed, I could only think of her as such now... smiled warmly at me and laughed a musical sound that seemed to thrill my old heart.
So frightened was I of this creature's legendary abilities to twist the hearts of men, and so relieved was I when I looked across the table into her dark eyes. This was a fearsome creature of the Fade, but as I spoke with her I slowly came to realize that this demon was merely as misunderstood as we mages are, ourselves."
Of all the threats from beyond the Veil, few are more insidious and deceptively deadly than the desire demon. In folklore, such demons are characterized as peddlers of lust, luring their prey into a sexual encounter only to be slain at the culmination. While a desire demon can indeed deal in pleasure, in truth they deal with any manner of desire that humans can possess: wealth, power, and beauty, to name a few.
Far more intelligent than the bestial hunger and rage demons, and more ambitious than the demons of sloth, these dark spirits are among the most skilled at tempting mages into possession. Many who serve the whims of a desire demon never realize it. They are manipulated by illusions and deceit if not outright mind control, although these demons are reluctant to resort to such crude measures. Instead, they seem to take great pleasure in corruption. The greater the deceit, the greater their victory.
Only demons of pride prove more fearsome opponents when roused. Their abilities to affect the mind allow them to assume disguises and even alter the environment to their purposes, not to mention the great strength and speed they possess if they should have to resort to more physical means. Most often a desire demon will attempt to bargain its way to freedom if overpowered—many stories exist that depict mages defeating desire demons to the point where a wish can be wrested from them. It should be noted that in such stories the demon almost always gets the upper hand even when the mage thinks his wish has been granted.