"Proper hunters and stalkers will tell you that nothing brings the Divine to your doorstep like a living sacrifice; always a pure young maiden in a white dress (suspiciously specific), but I despise use of live bait." 

Seek out the herb known colloquially as "Carver's Mother", a rather tall plant with spiny leaves that emits a pungent odor when cut. Combine this with soil consecrated by Our Lady and a fresh vial of your own blood for a near perfect lure.