 The King of the Copper Mountains

The King of The Copper Mountains is a children's novel by Paul Biegel, and was originally published as "Het Sleutelkruid" in the Netherlands in 1964, where it won the Gouden Griffel, the award for the best children's book of the year.An English translation by the author with illustrations by Gilliam Hume was published in 1968 by J. M. Dent.