556 What caused this?

-------------

" Lian Shou! Where are you?!" Mo Qiang pushed open the door of the laboratory with a bang. Inside the laboratory, however, he did not find the usual darkness instead——

" You can die with ease my child… I promise that I will bring you all sorts of good food when you are gone," Master Zhou covered his mouth as he sobbed while looking at Lian Shou who was lying on the couch. Around the couch were all sorts of things scattered like soft toys and gadgets with an automatic incense burner from which smoke was coming out without any incense. 

Mo Qiang and Mo Xifeng looked at the arrangement before turning to look at Master Zhou who was crying. Mo Qiang was the first one to break the silence, 

" Master Zhou… what's going on?" Why was Lian Shou lying on the couch as if she was going to die at any moment?