If God is omnipresent then God transcends all reality. Although God declares that man must worship no other god, all the other gods are God. Because of God’s omnipresence, God can be all the gods in a pantheon. For example, God is Odin as well as Thor. There is a separate distinction in the Norse mythology. However, because God is omnipresent, God can easily be both Odin and Thor.
Tirnanogue is the realm of the Fae. It is a multiverse connected to our own and looks very much like ours without all the technological wonders of the world. The Fae created this world when they left ours so they would never have to see technology ruin Gaea, the Mother Earth.
In the beginning, Cain killed his brother Abel. When Cain lied to God about the first murder, God put a curse upon Cain and gave him a mark to remind Cain about the lie he told. Thereafter, Cain has been cursed to wander the earth. When Cain had children, some of them bore the mark of Cain.