He really killed the fuck out of her.
Éannan in his search for Cruach, the titan that he believed to have taken his sister Caitlin came to the private library of Cyrus Karanic in Portland Oregon. While Cyrus was not there his wife Aria was and she assisted Éannan in finding the texts he needed within he found
That woeful creature, Crom Cruach, the titan of deceit and decay. He rules over all that creeps and crawls. He rules from Fomhóraigh in the center of that Emerald Isle, but a skilled mage is needed. And that Crom Cruach was defeated by Saint Patrick, who blessed the creature after stealing it's eye. Along with a depiction of Cruach.
While doing his research, Éannan was interrupted by William Anderson Dudley IV, who basically asked him for his help finding his father, he had come to the library as per the instructions on a message given to him by a messenger, but was apparently being stalked by a Gorgon. Apparently William had just discovered he was the son of the Judeo-Christian Lucifer, and Éannan thought that maybe by finding saint patrick, they would not only help find the answer to defeating Cruach, but also perhaps lead them to some concrete ideas on finding William's father. So it was decided, but first they needed to deal with the gorgon. That is when Irsu Scribe of Thoth, who had also been doing research in the library approached the pair and offered his aid.
They killed the gorgon. Irsu used its spit as hair gel, and the group left for Ireland. At the Portland International airport they saw a broadcast of a nationwide manhunt for Trevor Tennant. But they managed to make their flight with no issues. Once in Ireland they first stopped at Éannan's childhood home and then continued to the Down Cathedral in Downpatrick, Northern Ireland a garbage country.
There it was apparent that Cruach was affecting the land as everything, the buildings, the land was in a deep state of decay.
They found a ghoul and Éannan asked him about the state of the area and the wereabouts of Saint Patrick's grave.
The group entered the catacombs beneath the cathedral as pointed out by the ghoul, their journey was beseiged by Cruach, but non moreso than Éannan. On the way the son of lucifer somehow became intangled with the spirit of saint patrick who urged them on until they found his tomb and the Eye of Cruach.
After leaving the tomb they encountered what appeared to be Éannan's sister, but Éannan his mind affected by Cruach, his flock not recognizing the presence of his sister and not willing to believe she would so serendipitously show up launched his hammer at the person and they fell down and shortly after died. It was reveled as Éannan saw his sister's spirit leave the body. In disbelief the group summoned Cruach into the eye and Irsu combined it with Williams staff.