Exploring the Sea King Inheritance cautiously due to the numerous dangers that filled everywhere, from the spooky native predators to the ravaging competitors, to the tyrannical Atlantians was extremely stressful.
Though most of the mutated beasts in the inheritance ground were still consumed by their desire to get the riches in here and could not feel the pressure, those intelligent ones who already regained their sanity felt the pressure.
The tests of the Sea King's will were the last straw that broke their wits.
The pressure was so suffocating to most of these mutated beasts that it felt like they were slowly being squeezed to death by the tentacles of a giant octopus.
Of all these mutated beasts who felt the pressure, a specific group felt it more, it was that group with heavy responsibilities on their shoulders.
That group consisting of powerful predators like Old Mak.