Luminous Vitae
This ritual duplicates the effects of alternate light sources on vitae, causing blood to glow in the caster's sight. This is most often used to make sure an area has been cleaned sufficiently in a chantry as well. The caster looks through the eye of a needle when using this ritual.
System: This power lasts for one scene, during which blood on a surface, no matter how small an area or how faint, glows an iridescent purple. From the oldest bloody fingerprint on a desk drawer to a pool of blood gathering beneath a murder victim's corpse, it all becomes visible.
This power has no affect on blood inside a person or container. If the thaumaturge opens a vessel containing blood, he will see the vitae in the usual purple color, but this ritual doesn't allow him to see through other objects.