Although the spirit pets claimed they would scatter, once they entered the space, they still kept a close eye on the situation outside. Song Nianchu’s strength had increased after her breakthrough, so she didn't suffer as grievous injuries as before, but she was still nursing some minor wounds. Seeing her hurt, Si Jiuli felt a pang of heartache and began to treat her wounds as soon as she was settled.
However, without them noticing, the person before their eyes began to change. Before the spirit pets could react to what was happening, they realized both their master and Si Jiuli had entered an illusion realm. Even though the two were right in front of them, what the pets saw had changed. Those caught in the illusion were completely unable to distinguish between reality and fabrication.
This was the fourth stage: the illusion of inner demons. It manifested exactly what you feared most deep down.
Chapter 313