Complex sentence: She offers to return him to his homeland in return for him forging the magical mill, Sampo, he informs her that although he cannot do it, he will get the great smith Ilmarinen--the forger of the sky dome itself--to do it.
Split into simpler sentences: She offers to return him to his homeland in return for him forging the magical mill, Sampo. He informs her that although he cannot do it, he will get the great smith Ilmarinen--the forger of the sky dome itself--to do it.