 Snorri's descriptions of Hel in the "Prose Edda" are not corroborated outside "Baldrs draumar", which does not appear in the original Codex Regius but is a later addition often included with modern editions of the "Poetic Edda".In the book "Gylfaginning", Hel is introduced in chapter 3 as a location where "evil men" go upon death, and into Niflhel.The chapter further details that Hel is in the ninth of the Nine Worlds.