Felix was dumbstruck. There was someone else here, yet a powerful martial artist like him hadn't even detected them.

When he looked over, he saw a middle-aged woman standing behind Leah and Jean. She was even more elegant and refined than the twins.

Right then, the twins had strange expressions on their faces. They were frozen in absolute terror, not daring to move a muscle. Felix immediately realized they weren't choosing not to move—they couldn't move at all.

"Who are you?" Kenneth was stressed out. He had never met a stranger in a tomb before. And this person actually came alone.

How could this be possible? Even the most powerful wouldn't dare enter a tomb by themselves.

"Who am I? Well, let me introduce myself. I'm Mackenzie. Or in your terms, I'm an S-tier Malevolent Phantom."

What? Felix and Kenneth gasped. Looking at the twin sisters who were nearly in tears, it made sense why they were instantly immobilized—this was the work of an S-tier Malevolent Phantom.

But why