Rackharrow Bloodletting Ritual

Named for Urquhart Rackharrow, the Rackharrow Bloodletting method is an old and storied method to safely collect potentially corrupted or cursed blood for divination or testing. It combines three elements:

1. The enchanted knife has a runed wooden handle and a spike-like blade with a groove running down the length. When the knife is touched to a droplet of blood, the groove sucks it in.

2. The vessel is of glass and alabaster, just big enough to hold two or three tablespoons of liquid.

3. A revealing medium. An amber-colored potion and the blood sample are placed in the vessel.

After a few minutes, the medium will react to any abominable magic or curse affecting the blood.

This method is commonly used for testing for complications of a Vampire Bite.

References

• Athena Marrowbone tests Virgil Carstairs's blood after a vampire bite. [1]