SdL Megalodon, Shimmering Sea, Terra Nova
Sonar heard it even though no one else did. He pressed a button and waited for the computer to do the analysis. When that was done, a matter of a few seconds, he announced in a soft voice, "Captain, Orca's passing two hundred meters above us and twelve hundred meters off of our starboard bow."
"Put it on screen," Chu ordered. Immediately the large plasma screen that was mounted a half dozen meters in front of Chu's command chair lit up with generated images of the Meg, centered, and the Orca, some distance off. Numbers arrayed around the images gave information on depth, course and speed. The whole effect of the screen was keystoned, as if to display the ocean not from above but from an angle.
"Helm, follow her once she's eight thousand meters ahead. Maintain this depth."