35 years ago, the corrupt king of the Kingdom of Verhirith, King Cillian, received word of a Prophecy that foretold an unnamed, coming age of Darkness and the birth of the One─the savior who would rescue Eire from this coming darkness and reign over all mortal kings─on the night the Star of Creation would appear in the sky. With the help of his astrologists and scholars, King Cillian determined the night this star would appear and secretly began making plans to have all infants born on the Prophesied Night and any who stood against his soldiers killed, terrified of the Prophecy coming true and having another king rule over him.

23 years ago, the Order of Mátheor heard of his evil plans a month before the Star would appear and spread every single member of their order across Eire─at least one to each town, and many to each large city─in preparation for the Night, scouting ahead of time and finding out who was due to give birth then. Then every member of the Order were to stand guard at the births, whisking the parents and newborns back to the safety of their monastery as soon as the children were born.

When the night came, Éva Carthaigh, the High Priestess of the Order of Mátheor, was in the city of Bethagne in the Kingdom of Verhirith, overseeing evacuations of new parents and babies. While walking down a street, Éva heard soldiers shouting, a woman screaming, and over it all, a newborn’s cries. She hurried to investigate and found ten of King Cillian's soldiers standing over the body of a man in a stable, about to kill his wife and child. Éva arrived too late to save the mother, but she defeated the soldiers in time to save the child.

Like the baby girl Éva saved, some births weren’t found out until the night of, and the Order was too late to save them and/or their parents. Others were overwhelmed by soldiers and assassins of King Cillian’s and the children, parents, and Order members were killed. In the end, Twenty, including Éva's ward, were saved and brought back to the monastery where Éva named the baby she saved Aileen, meaning “light,” as a bright hope in the midst of the bloody and dark circumstances surrounding her birth. From then on, Éva served as a mother in all but blood for Aileen as she grew up with the rest of the Twenty under the care of the Order of Mátheor.