When Shizuo spotted Izaya he was with Shinra, but since then he had no idea about where he was.
They were picking up some branches to light a fire and get some heat during the night, true to his legend, the blonde started to chase his mortal enemy the very second he saw him, forgetting everything else.
Shinra sighed, Shizuo would definitely never learn. He continued his task, not bothered the slightest bit by the fact he was alone on an island where no laws aside from "kill or be killed" existed, Shinra always had faith in humans, maybe too much.
He was also totally oblivous to the fact that there were people hidden in the bush behind him, observing him and occasionnaly making remarks in Russian.
These two people were called Vorona and Slon. From the very beginning of the experiment they were following Shizuo and the rest of his group. Vorona leading the way, led by her desire to fight Shizuo again and possibly even winning.
For her this experiment was like heaven, she never really paid attention to human laws, but she still knew that killing was not exactly encouraged in the normal society.
Here, she had nothing to worry about, she could kill all she wanted, and it was even encouraged. Yes, Vorona was in heaven.
Slon sighed as he saw a smile growing on her face, he knew that he'll soon have to witness another one of her rampage. He didn't really mind though, for once he wouldn't need to clean after her.
Vorona didn't bother taking advices from her companion, she just jumped toward Shinra, reaching for his neck with her bare hands and tighten her grip around the delicate flesh of the underground doctor.
Soon he would start coughing and looking for his breath, clutching his hands around her arms, struggling to try to make her release him.
All he tried was useless though, her strength was too much for him to fight against, he never thought another woman than Celty could make him feel so helpless.
He lost any sense of reality and drifted away in the land of the dead, joining the ones who had to go through the same fate because of his own father, such irony he thought.
His last regret was not to have been able to tell Celty he loved her once again, even though it was have meant she was here with him and put in danger.
At least he knew she was still safe and sound in Ikebukuro. When he closed his eyes the last image he saw was Celty smiling at him.