He reacted to N'Jal's power.

Nosdyn felt the weight of her power and dropped his mighty sword. He suddenly did something unexpted. He reached into his packs and pulled out the glowing Thayne Relic he was the custodian of. It reacted to--Nosdyn's blood! Blood is the key of course! Stupid why didn't you think of this earlier! Nosdyn's black blood dripped all over the Thayne relic and the Eldricht marks lit up with glowing energy. Nosdyn FELT the reaction immediately. He never felt such power before! His Demon's blood reacted to the influence of the Thayne Relic in his possession. He grasped the relic tightly in both hands.

He felt power flowing through his veins. His blood reacted overwhelmingly to the relic. The brilliant light fueled by Kalestiya's own power swelled through him. He looked at N'Jal gasping with pitty for her. In a moment of sheer destructive force. N'Jal became as glass...Nosdyn's reflection shattered as the glass shattered. The pieces of glass were yelling with N'Jal's screaming pain. The glass was vibrating with power. Nosdyn knelt down to the destroyed N'Jal fragments.

He was gasping. He loooked at his son. Tharak son of Nosdyn. He yet lived as did many others. Nosdyn took a piece of the glass of N'Jal into his possession. He knew he would need it just in case. He knelt on the ground for a moment, seriously injured. His black blood flowing down his face and arms. He looked up to his son. Placing the Thayne relic back in his packs. He grabbed his swords and sheathed it. The power of the Thayne Relic was amazing. He would study it further. He got up and went to make sure Kalestiya was safe, always make sure she is safe. The N'Jal shard was reacting....He turned to look to see if Kalestiya was safe.