The person who knew someone's weaknesses best was always their enemy.
And when Voldemort and Tom, two souls of the same being, became enemies,
the attacks they devised were absolutely lethal, striking the enemy from within. No defense, however powerful, could stop them.
Rather than studying Voldemort, Tom had really been studying his own future.
Voldemort's later strength came not only from his extraordinary talent, but also from inheriting Salazar Slytherin's legacy.
Voldemort had experimented not just on his body, but on his own soul as well. Otherwise, he would not have remained noseless even after his resurrection.
To defeat Voldemort or trap him until he died, Tom had approached the problem from that angle, truly using himself to understand his enemy.
Voldemort's heart seized with dread at the sight of the green curse hurtling toward him.
But the Yinglong Patronus's self-detonation had just scattered the Obscurus's dark energy around his body, and it had yet to gather again.
Voldemort's eyes nearly bulged from their sockets as he desperately forced the Obscurus within him to surge outward in defense.
In an instant, the green light struck the layer of Obscurus energy that had just risen.
Yet the curse's energy ignored the Obscurus entirely and acted directly on Voldemort's soul.
Voldemort was currently living as a parasite. Only his powerful soul and profound familiarity with dark forces made this possible.
They allowed him to suppress the original host's soul and will while expertly wielding the Obscurus's power, even keeping that immensely destructive force from running out of control.
But the moment Tom's specially tailored curse struck his soul, his control over the Obscurus was severed, and he roared in pain.
"Aah!"
Immediately, the original host's suppressed will awakened, and the scarlet eyes turned pitch-black.
Unfortunately, the original host could not control