Found in folklore, a quirin (also called a quiris) is a stone that is said to have the power of a truth serum. In high demand from witches, wizards, and magicians (and, one would expect, suspicious partners...), the stone would be placed under a pillow, with the sleeping person talking in their slumber and supposedly confessing to all sorts of mischief.
The stones are said to be found in the nests of two Old World species of birds - the Lapwing (species of Plover) and Hoopoe (related to the Kingfisher). A Hoopoe quirin would be found in Europe, Africa, or Asia in the nest of an orange-gold, black and white bird. A Lapwing kind would be located sitting in the nest of a grey and white bird in Europe and Asia.
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