After collecting all the Black Tortoise Demon Blood, Chen Mu carefully inspected the secret vault.
The result was that he did not find any other hidden areas, nor did he find the more precious 'Black Tortoise Heart Blood.' However, considering the preciousness of the Black Tortoise Heart Blood, it would be extremely effective for anyone in the Blood Exchange Realm. If there were thirty to fifty Black Tortoises, gathering a large amount of heart blood, it might even be possible to forcibly create a 'Blood Refinement Perfection' even when the Blood Exchange Realm system is incomplete.
Of course, this situation is almost impossible, even in the primordial times when demons roamed rampant, there couldn't be thirty or fifty Black Tortoises, as they were tenth-rank celestial demons, and even more rare in the Recent Ancient Era.
In the past, Ji Hao swept across the world, and it was already extremely lucky to hunt down one Black Tortoise.
