Susan and Kaneki ran to the boss zone while carrying Nathan and Lark.
When Nathan was about to be pulled into the Wormhole, Lark rescued him at the last moment. Normally, Lark shouldn't have been able to cover the distance in such a short amount of time.
However, Nathan's desperate struggles during the final clash brought enough time to save him.
Lark was breathing slowly and his skin shriveled like a dried branch. His cheeks had sunk into his skull and he was spasming every few minutes.
Nathan was no better, with half of his nerves fried and flesh mangled to the extreme. His appearance was hideous and disgusting to even look at. The only reason he was alive was thanks to Lark.
Nevertheless, Susan didn't direct her eyes away from him. Unknown emotions brewed behind her gaze and she bit her lips until blood flowed out of them.
“I’m sorry I couldn’t save everyone.”, huh?