The thumb-sized tube, with its rubber ring under the cap, was a waterproof case used by soldiers. It was normally used to hold a document with name, blood type, and history of illness in case of injury. Others used it as a matchbox. Until his death, Shinji assumed his uncle kept that sort of thing in it too. But after he died, when he opened the tube, Shinji found something completely different inside. In fact the tube's casing itself was carved out of a special alloy and contained two smaller cylinders inside. Shinji took out the two cylinders. He had no idea what they were. The only thing he could tell was that their contents were supposed to be mixed.
The thread of the screw from one of the cylinders fit perfectly into the other one. The reason why they were kept apart was that it was risky to connect them. And once he found out what they were for, after some research (no wonder they were separate—otherwise, you couldn't carry those cases around), he still had no idea why his uncle carried this around wherever he went. It served no particular purpose. Or maybe like the earring Shinji wore, his uncle had merely held onto it to remind himself of someone. Anyway, it was another piece of evidence from his uncle's past for Shinji to ponder over.
Shinji turned the squeaky cap and opened it. He hadn't opened it since his uncle died. He dropped the two cylinders into the palm of his hand. Then he opened the seal of the smaller cylinder.
It had been stuffed with cotton to make it shockproof. There was the dull yellow of brass underneath the cotton.
After examining it, he returned both cylinders back into the larger container and screwed the cap back on. He'd thought that if he ever had to use this, it would be after they escaped the island, or after messing up the school computer. It might have been handy after they equipped themselves and attacked Sakamochi and the others—but now this was all they had.
He flipped out the blade from his pocketknife. The sun had moved west, and the bushes reflecting against the silver steel were dark yellow. Then he pulled out a pencil from his school coat pocket. It was the pencil they all used to write the phrase, "We will kill," before the game began. Because he'd used it to mark the forbidden zones and check off the names of dead classmates, its point was now blunt. Shinji sharpened the pencil with his knife. Then he pulled out his map from another pocket and turned it over. It was blank. "Yutaka."
Yutaka had been hugging his knees and gazing at the ground. He looked up. His eyes were shining. "Did you come up with something?" he asked.
Shinji wasn't exactly sure why Yutaka's response ticked him off. It might have been the tone of his voice, or maybe the words. Shinji felt like saying, what the hell—here I am banging my head against the wall trying to come up with an escape plan and all you've been doing is sitting on your ass! You swore you were going to get back at them for Izumi Kanai, but you haven't done squat. You think this is a fast food restaurant where I'm working the register? You want some fries with that?
But Shinji restrained himself.
Yutaka's round cheeks were sunken and his cheekbones stuck out. It was only natural. He must have been worn out by the pressure of this game that could end at any moment for them.
Ever since he was a kid Shinji was always the best athlete in the class. (Although this changed in his second year in junior high, when he was joined by Shuya Nanahara and Kazuo Kiriyama. He could beat them in basketball, but he wasn't sure about other sports.) His uncle had taken him mountain climbing ever since he was a kid, and he was confident in any competition that required stamina. But not everyone was built like The Third Man. Yutaka was a poor athlete, and when the cold season came he was often absent. Fatigue must have been overwhelming him, and it might be numbing his thinking too.
That was when Shinji realized something important. Wasn't the fact that he was even a little upset at Yutaka an indication of his own fatigue? Of course, given how their chances of survival were close to nil, it would have been much stranger not to be worn out. No.
I have to be careful. If this were a basketball game, you'd just feel bad about losing—but in this game you end up dead.
Shinji shook his head.
"What's wrong?" Yutaka asked.
Shinji looked up at him, forcing a smile. "Nothing. Hey, I just want to take a look at the map. Okay?" Yutaka came over to Shinji.
"Hey," Shinji raised his voice. "There's a bug on your neck!"
Yutaka touched his neck.
"I'll get it," Shinji stopped him and approached Yutaka. He fixed his eyes on the nape of Yutaka's neck—but he was searching for something else.
"Oh, it's moved," he said and got behind him. Shinji examined his neck again.
"Did you get it?"
As he listened to Yutaka's shrill, terrified voice, Shinji took a closer look.