Blood trickles in channels alongside the walls of Ur and pools in chalices in Transylvanian castles, carrying the power of sorcery—to ward, guide, and perform dark miracles beyond even the capabilities of vampires. And the Blood can change. Thin-bloods transmute it in kettles, meld it in their own veins, and boil it in the bodies of unfortunate mortals. This thin-blood alchemy flares up, burning new paths through vampire society as newly-fledged vampires seek any leverage against the Kindred who would destroy them, and on the Blood itself. Orphaned Judges, desperate Warlocks, and Mercurians with nothing to lose rewrite the rules of blood craft in these 21st-century nights, inscribing new names and laws in their Blood Sigils. This book presents Blood Sorcery and Thin-Blood Alchemy for Vampire: The Masquerade.