C457 It's over I'm Afraid It's Useless

"Does anyone have a detailed nautical chart?"

Ye Yu called out to the surrounding passengers.

"I do!"

A passenger shouted, standing up and pulling out a tablet from his backpack, grinning at Ye Yu. "I do coastal mapping for my studio. I've got a detailed chart right here on my tablet!"

Ye Yu's eyes sparkled with excitement. "Great! With this chart