Before going back, Amon traveled the maze to get the Thunder Roc. He could not yet share his senses with Lin Li despite their bond, but he could telepathically talk with her as long as she was not too far away. He asked her to rearrange the maze so he could get to the Thunder Roc. Meanwhile, he sent a mental command for the Thunder Roc to stop moving.
He sent the Thunder Roc back into his black space ring after reuniting with it. He then returned to Yuka's prison room.
He took over the control panel from Lin Li. Standing behind the pedestal, he aimed the safety device at the warden puppet standing guard over Yuka and activated it.
Once he did, the warden puppet slumped.
"Hm?" Yuka appeared surprised. She probably never believed Amon. She floated to the warden puppet and took a closer look at it.
The hands on the woman's part of Yuka pushed at the stationary puppet, which fell backward without any resistance.
