Neither the camp nor the items from the tomb were meant for him, but rather, they were for dealing with that thing guarding the camp. No wonder they built a camp in a low-lying area.
The matter of that sewer system is still the fault of the Ancestor.
In the game's storyline, while the Ancestor was collecting and studying various rituals, he discovered a particularly interesting summoning ceremony: the Flesh Sacrifice.
The Flesh Sacrifice was notoriously difficult to master. To summon those creatures from the Otherworld into reality, a physical vessel was necessary.
In essence, that meant flesh offerings, and the Ancestor extended his sinister grasp towards his own subjects.
At the same time, the timing of the chanting was crucial—if one couldn't vocalize correctly at the exact moment, the ritual's process could abruptly fail.
The Ancestor was undoubtedly a genius, but his first attempt at summoning was immature, and the results were disappointing.
