Craft Bloodstone
This ritual creates a small stone used as a tracking device. The caster must place a small pebble into a vial filled with three points of blood from any source. This blood need not be human. Every night for three nights, the thaumaturge recites an invocation over the vial. The bloodstone absorbs a single point of blood each night, and the liquid becomes slightly clearer, until on the third night it becomes as transparent as water. The vampire then has a mystical connection to the stone, and knows its relative position at all times.
System: A thaumaturge who creates a bloodstone instinctively knows where it is at all times. This is not so much knowledge of its precise location as it is an understanding of it direction and distance from the caster.