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.
Interesante propuesta de los clásicos de los Grimm sin embargo las versiones son más crudas que las habituales y realmente no llegan a interesar ya que no presentan hechos desconocidos, ni aventuras extras, ni belleza relevante en el lenguaje.
A mi parecer es una sobreproducción mórbida de los clásicos sin justificar su precio.