What happened to Beibei in the novel Calculating Yin's Destiny?

Beibei is dead. Ye Beibei's voice came to an abrupt end, her eyes closed, her body collapsed on the ground, and there was more and more blood in her heart, which enveloped her. I looked at her face, and black gas suddenly appeared in the palace of her face, and this black gas suddenly became a dead thing and enveloped her palace for a long time.