Elixir of the Heart

A black magic potion which weakens one’s will and leaves them open to suggestion. Over time repeated use will weaken the will to the point they are little more than an automaton. It is made with insect material, probably a centipede. Maria mixed it with walnuts, stomach lining from a cow or goat, sugar, human blood, eggs and chocolate.

Elixir of the Heart

Dresden Files: Against the Darkness kareyev