More Mixed Mythologies In Works By Three Authors

In Neil Gaiman's The Sandman: The Kindly Ones, Morpheus' raven, Matthew, visits (Norse) Swartalfheim - and indeed is involuntarily yanked away from there when ravens gather in the Dreaming because it is threatened by the (Greek) Furies. Swartalfheim, home of the dark elves or dwarves, and Alfheim, home of the light elves, are two of the Nine Worlds in the Ash Tree, Yggdrasil.

Alfheim (scroll down) is in Poul Anderson's The Broken Sword. Yggdrasil is in Anderson's Operation Luna and in Mike Carey's Lucifer, the sequel to Gaiman's The Sandman. Carey also gives a big role to Fenris Wolf. Firespear's elf-hounds had:

"...blood of Gram and Fenris and the Wild Hunt's dogs in them."

-The Broken Sword, XII, p. 89.

In The Sandman: Season Of Mists, messages from the (Biblical) One God are relayed by an angel and the former appears as an elderly gentleman in modern garb in Lucifer. He exists but remains in the background in Anderson's The Broken Sword and Operation Chaos.