He felt compelled to help her...it was much like when he met Lady Xelldra that first night.
He felt inherently connected to the undead...he never knew why but ever since the night in that cave he felt a connection to them.
His hand massaged her softly as he held her. He knew she needed warmth, a lot of warmth. All undead he knew of needed that same warmth. He held her as close as he could...
