The Dead Sea was not a sea, but a sheer precipice.
Anyone who approached it would be swept up by a gale and cast into the chaotic void. There were no void channels within, so once sucked in, not even a Deity Transformation expert could tell where their next stop would be.
Cultivators below the Nascent Soul level who accidentally fell into the precipice faced a perilous end because the turbulence there was violently erratic.
Chapter 880