If the strongest sealed monster in this Water World was the Hell Hydra King, Yue Yang definitely would not believe it.
What he was most concerned about was this Hell Hydra King could be the subordinate or friend of some ancient being that just wouldn't die.
Just like that black bearded Mo Long who was sealed in the Death Boundary within the man-eating lake in the Southern Heaven Realm, the Ancient Demon Shark, Ancient Island Whale, Dragon Electric Eel and Cuttlefish King were also sealed together with him. These five Hell Hydras might just be the subordinates of some ancient monster, who knows?The Hell Hydra King seemed to have a certain intellect as it had a doubtful gaze when it saw Yue Yang and the Stone Element Stone Element Medusa.
