Mu You raised his hand, glanced at the Storage Finger Ring on it, and took out a peach-pit-shaped crystal.
The Forest Spirit's Heart-this nearly overflowing Forest Spirit Core contained Black Magic Power of the utmost concentration. In terms of volatility, it was certainly volatile enough.
At the same time, however, it was quite stable. After all, no matter how much energy it held, it was stored inside a fist-sized crystal, like a battery, and could release that energy relatively steadily. Unlike a wild natural wonder such as the Groundspring Fountain, whose eruptions were intermittent and fluctuated in strength, it would not cause the device to explode that way.
In that case, this Forest Spirit Core should meet the requirements, right?
``` [You took out the Forest Spirit's Heart, handed it to the old Goblin, and asked whether it could be used.]
[The dejected old Goblin paid no attention to your words at first and instinctively accepted the Forest Spirit's Heart.]
[But within mere seconds, the Goblin grew astonished. He had already sensed the overwhelmingly surging energy within the crystal core!]
["Impossible! How could such powerful energy exist?" The old Goblin stared blankly at the crystal core in his hands. Its energy was as deep and vast as the sea. He could not understand why such immense energy could gather so stably inside such a small crystal.]
[Countless questions surged through the Goblin's mind, but his overwhelming feeling was ecstasy. "I've found it! This is the energy source I've pursued my entire life! With this crystal core, I can complete my invention!"]
[The Goblin held the crystal core and laughed incessantly, that fervor and ambition appearing on his face once more. Before his laughter died down, however, the crystal core rose on its own and flew back into your hand.]
[You