German philologist and folklorist Jakob Ludwig Karl Grimm in 1822 formulated Grimm's Law, the basis for much of modern comparative linguistics. With his brother Wilhelm Karl Grimm (1786-1859), he collected Germanic folk tales and published them as Grimm's Fairy Tales (1812-1815).
Indo-European stop consonants, represented in Germanic, underwent the regular changes that Grimm's Law describes; this law essentially states that Indo-European p shifted to Germanic f, t shifted to th, and k shifted to h. Indo-European b shifted to Germanic p, d shifted to t, and g shifted to k. Indo-European bh shifted to Germanic b, dh shifted to d, and gh shifted to g.
've read variants of this story before. A recently discharged soldier, disgruntled with the paltry sum he was given, vows to become a wealthy man (this seems to be a common theme in Grimm tales). Along the way to seek his fortune, he meets five other men, each with a special ability. They work together to make off with a vast sum of wealth, despite the treachery of the local king.