The blood of Caine grants some power and beauty, but it drags others into the shadows and pits. Their minds shatter, their bodies wither and their souls rot. But with the Curse comes power, and in the depths of ruin lie the greatest secrets. High-born princes dismiss the lesser clans as beneath their notice, but pay the price for such hubris. Libellus Sanguinis IV: Thieves in the Night includes: Full coverage of three clans for the Dark Ages: the Malkavians, Nosferatu and Ravnos; New Discipline powers, Merits and Flaws, and other traits specific to the three clans; Expanded explanations of Dementation and Chimerstry.