Grey knocked out the horned man before he continued the journey. He was not stupid enough to let the man travel with him. Even if the man was under his constant supervision, he didn't know if there was a way they could communicate with others without him knowing.
They could easily ambush him, and that would be deadly, even for someone like him. Void was his greatest help here, and he couldn't afford to let Void absorb the treasure since he would sleep after absorbing it. That would leave only him here, which would be very dangerous for him.
He didn't know if the restrictions of this realm would stop him from using the talismans he got from his Teacher, so the best plan was to avoid encirclement as much as possible.
Three days later.