Sonar and the Thermocline

Su Ming started the gyroscope, which continuously recorded the White Triangle's course.

Xiwo only glanced at what they were doing. Though there was much he didn't understand, he didn't ask a single question. He went to the operations room behind the wheelhouse and sat down.

After finishing at the controls of the White Triangle, Su Ming joined him in the operations room.

"Based on everything we know so far, the sea monster has quite a few characteristics of an octopus." Xiwo pointed at the drawing on the table. "Its tentacles look much like octopus arms, and there are eight of them."

"It's just much bigger than a normal octopus," Su Ming said.

A white skeleton brought over some tea, and Zijin set a cup in front of Xiwo. "Have a drink first, Grandpa."

Xiwo picked up his teacup and glanced outside the cabin. "Twenty-four knots?"

Su Ming looked back at the speed indicator. It read 24.2 knots. "Yes."

"Impressive! No wonder those factions were willing to set the wanted notices aside and ask for your help," Xiwo said. "Do you have any way to search for the sea monster?"

"There's a towed sonar at the stern," Su Ming replied. "We haven't tested exactly how well the system works yet, but our preliminary estimate is that it can detect targets over seven kilometers away in active mode."

A look of surprise appeared on Xiwo's face. "The younger generation is formidable!"

Su Ming looked at Zijin. "Should we tell him?"

The girl shook her head. "Grandpa already has his suspicions. We don't need to explain. If we say too much about unrelated matters, we'll only drag him into them."

"I'm not afraid of what might happen to these old bones, but the trouble Xiao Jin gets into keeps getting bigger. I can