zaganzar also known as Zagána, Hendesangwa and Henhaew was a bluish oil extracted from the roots of the zagan, a columbine relative native to cool, temperate mountains, found most frequently near, but not actually in, clearings. Zaganzar was extracted from zagan roots by boiling them in vinegar, filtering the extract, then adding soda, lye, or some other base to separate the oil, which floated to the surface where it was collected and filtered again. Zaganzar caused permanent blindness by reducing the victim's optic nerves to water.
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