"Is it really okay to feed all six prisoners to the Malevolent Phantom back-to-back like this, sir? Isn't it happening a bit too fast?" Marley asked.

Felix stood by the window, gazing outside without turning around. "This is the first time I've seen a Malevolent Phantom react like it's been poisoned. That means the Hall of Souls is playing a long game. To them, only the outcome matters, and the process doesn't.

"The fact that they gave Viper the entire batch of serum all at once proves that. The dosage must be excessive. No one would take the risk of running short. In that case, Chloe's survival is just an irrelevant side effect.

"Of course, this is all just my speculation. I'm not completely sure if I'm right, but this is the best chance we have to grab onto the Hall of Souls's tail."

After a brief silence, Marley asked, "What I don't understand is how the Hall of Souls can be so certain that this particular A-tier Malevolent Phantom will kill everyone who takes the serum. What i