The ghastly roar reverberated in the entire underground ice city, startling everyone except for the zombies.
The snow monsters who were fighting with the zombie monsters started to howl crazily after they heard that roar. Their eyes went berserk, and their bodies started to bulge all of a sudden.
This sudden reaction startled the Puppeteer Zombie Dead Duke even more as those snow monsters became instantly strong and started to attack without caring about their own lives.
"Is this the guardian of this shackle, or I'm in the wrong place and reached the wrong conclusion?" He muttered with uncertainty and turned his attention back to Jacob and Charlotte, who seemed to have awakened this unknown monster, "Let those livestock confirm this for me. This is playing all in my favor."