"Can you tell me everything about this device now?" Laesto asked in a low, husky tone.1

Charles nodded as he said, "Come in." He then stepped aside for Laesto to enter the room.0

Sitting opposite Laesto, Charles slowly shared everything he knew about a smartphone. Laesto listened in silence as his right hand traced circles on the phone.0

"This device can be used for communication, entertainment, and also work. I couldn't live a day without it in the surface world…"1

As Charles recounted his life story, images of his peaceful past filled his mind. He had always taken the mundane comfort of those times for granted, but the chaos of his current life in this subterranean sea had him yearning and cherishing those times even more.0

"So that means this device is a tool for communication, like a telegraph?"0

"You could...0