Oberon was King to the Fairies of Otherworld that resided in a mystic place called Avalon. For reasons yet to be revealed he exiled his daughter Tink
to live among the humans. He later had her marry Pete Wisdom
a member of the British Intelligence team MI-13. Their union was to ensure mutual protection to both Otherworld and Britain. When the shape-shifting alien Skrulls invaded Britain to seize the power of magic by destroying the gateway known as "The Siege Perilous." Oberon realizing that the situation was dire began sealing the doors to the other universes, to prevent the Skrulls from using Avalon as a bridgehead for its campaign of conquest.