The panacea herb that could cure all diseases.
Odo had probably placed all his hopes on that miraculous herb growing in the ancient city.
But could the herb really remove the Caged Bird Seal?
Ronin was very curious.
And even if it really could undo the Caged Bird Seal, with Odo's ability, even if he brought along a Gold and Silver Ingot transformed into his War Ancient Tree, could he safely return from the ancient city to the lake?
Ronin said nothing more. His thoughts returned to the Summoning Technique.
However, this good mood did not last long. When night fell, that piercing wail appeared beside everyone's ears again.
"Damn it. I think that thing isn't on the wasteland. It's on the floating island, and it followed us." Ronin's head ached from the noise.
They could endure it for a day or two. Before, they had even thought that as long as they crossed the wasteland, the sound would disappear. That had given everyone something to look forward to. But now that the sound had followed them, it meant the wasteland was not the root of the problem.
"Find it. We have to find it, no matter what it is!" Ronin's expression was extremely ugly.
The expressions of the others sitting in the meeting room were just as bad.
Although they could make up for sleep during the day, being tortured all night made it so that even when they closed their eyes in the daytime, that piercing sound seemed to echo beside their ears. It really could drive a person insane.
Ronin did not know what methods the others would use.
But after locking onto the likelihood that the culprit was on the floating island, Ronin already had an idea.
Under the night sky, he walked out of the laboratory on his own and came onto the island.
Nen was quickly transformed into chakra. As he formed hand seals, his ninjutsu was activated.
A large amount of chakra was sent into the sky, then quickly burst apart, forming a light drizzle that fell from above and landed on every part of the island.
Ronin closed his eyes.
This was Ninja Art: Rain Tiger at Will Technique.
Every raindrop falling from the sky was formed from Ronin's chakra. Whenever a raindrop struck any living being, Ronin would receive feedback.
After excluding the giant eagles and other species created by the laboratory, Ronin's brow slowly furrowed.
Because through his chakra's subtle perception, he finally sensed some insects clinging to the trees on the island. He had no idea when they had appeared.
These insects looked completely harmless, but when raindrops struck their bodies, Ronin could clearly sense them trembling.
That trembling had a special rhythm.
Most importantly, these things seemed capable of blocking Nen detection. Ronin could clearly sense the raindrops striking them, but when he switched to En to detect them, he found that his En simply slid over their bodies and failed to give him the information he needed.
His eyes, which had been closed the entire time, suddenly opened in that instant. Without waiting for the people watching him to say anything, his figure vanished from everyone's sight.
When he appeared again, Ronin was already holding a strange insect the size of a palm.
It looked like the cicadas one could see in summer, except it was much larger.
Most importantly, its chest and abdomen were constantly moving. And as its chest and abdomen rose and fell violently, everyone felt the mournful wailing in their ears become even more miserable.
There was no mistake.
It was this thing!
Ronin had no idea when the floating island had provoked these things, but his expression became extremely grave.
Because through the Rain Tiger at Will Technique, he could sense that there were countless giant cicadas like this on the floating island.
"Catch them!" Ronin said through gritted teeth. At the same time, after completing his hand seals, he spat out a small fireball.
The instant the small fireball appeared, Ronin threw the giant cicada in his hand.
The flames struck the cicada just as it struggled to fly away. There was no scream. Instead, in that instant, everyone suddenly felt their ears become peaceful.
The endless mournful wailing disappeared.
But before joy could bloom on everyone's faces, a new troublemaker had already appeared.
The wailing sounded again, and it was even louder than before.
But now, that no longer mattered.
Because now that the people on the floating island had a target, their Nen erupted, and they rushed out of the laboratory.
After being tortured for several days, everyone had been holding in anger.
Now that the culprit had been found, how could they possibly hold back?
Only Ging did not rush into action. A look of confusion appeared on his face.
"That shouldn't be right. A cicada this big shouldn't have been able to completely escape my observation. And this thing actually changed to calling at night. Interesting."
"There may be some trigger condition," Ronin thought of a possibility.
Ging's eyes lit up, and he immediately understood what Ronin meant.
And once Ronin thought of it, he acted on it. The light drizzle that had been falling moments ago suddenly stopped.
That simple change made everyone who had rushed out discover in surprise that even the cicadas they had already seen vanished in an instant and stopped calling.
"It's the rain! No, it's energy!" Ronin instantly understood.
As he said this, he had already arrived beneath a tree. Instead of using En that spread outward, he touched the tree with his hand and used Shu on it.
Nen spread out, wrapping around the entire tree in an instant.
And as the Shu fully formed, a giant cicada appeared silently on the tree.
Boom!
Blinky smashed directly into the cicada, bursting it apart.
Now that they had a method to find them, clearing them out became simple. It was still the same light rain from the sky. This was the simplest and most convenient way to make them reveal themselves.
However, after working busily for the entire night, when the morning sun appeared, the mournful wailing still continued in everyone's ears.
Clearly, cleaning out all the cicadas on the island was not a small project.
Only when the sun rose did the cicada cries finally disappear completely.
But in the light rain, everyone could still discover cicadas on the trees. Without hesitation, they caught them, but this time, they did not rush to kill them.
The entire day was spent catching cicadas.
By the time the sun set, everyone had already caught more than a hundred cicadas. The cicadas gathered together were burned clean by Ronin with one Great Fireball Technique.
Under the night sky, that infuriating cicada cry did not appear again, making everyone breathe a sigh of relief.
Their entire day of work had not been wasted. They could finally sleep properly.
But just as that thought appeared, in the latter half of the night, the mournful wailing rang beside everyone's ears again.