While Vyon was occupied, Riku and Arnold rushed to the sealed stone door.
"You did it. You tamed that monster," Arnold said, his eyes wide with a mixture of terror and awe.
"It won't hold him for long. However, itt doesn't need to," Riku said. He pulled out the Mysterious Key.
"Here goes nothing."
As he brought it near the keyhole-shaped lock, it pulsed with a brilliant white light. He inserted it.
The key dissolved into pure light that flowed into the dark red runes on the door. The runes hissed and sizzled, their corrupt energy being neutralized as if by a powerful acid. With a deep, grinding groan that shook the entire chamber, the ancient stone door slid open.
Inside, they found a horrifying sight. Suspended in the center of the chamber by thick, vein-like tendrils was a massive, pulsating, fleshy heart, the size of a carriage. It beat with a sickening thump-thump, and with each beat, a wave of red mist—pure Creep energy—was released into the air.
