| Siobhan McDougal was the first-born child of Garrett McDougal, the patriarch of an old Gaelic clan that has occupied an island midway between Scotland and Ireland for a thousand generations. On that island is Castle Broen, where first-born McDougals enter to undergo a ritual to prove them selves worthy to lead the clan. When Siobhan was young she travelled the world, only returning to Castle Broen when she heard of her father's death. Her uncle Seamus was determined that no woman would lead the clan, and intended her brother Bevan to become the new patriarch. She went ahead with the family ritual by herself, which involved calling on supernatural forces for power. Bevan interrupted her, and the distraction proved disastrous as she was dragged away into an infernal netherworld. An entity called "the Crone" granted her powers and the ability to return to Earth as the Silver Banshee, but demanded payment in the form of an occult book that belonged to her father. She found that her father's book collection had been shipped off for sale in the United States. Her quest brought her to Metropolis, and as she killed anyone that stood in the way of her search, she attracted the attention of Superman. |
