The Dritch is a spirit trying to put itself back together after death by burning. One thing about burning is that it tends to destroy all the juicy bits. The Dritch if it can get its withered hands on a living human will try to suck every bit of moisture from the poor victim. The trouble is that it never lasts so the Dritch goes through cycles. Truly it is said that their is nothing more vexious than either a Dritch or a writer going through a dry spell.
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