SdL Megalodon, Shimmering Sea, Terra Nova
Auletti turned his head over one should and twisted to look directly at Chu. "The frog sub's disappeared, skipper. No trace."
"Well find it."
Auletti gave his captain one of those looks that as much as said, Don't be an ass. Sir.
Chu nodded. "Yeah, right. Belay that."
Aleman suggested, "We might be able to pick them up again if we come up above the thermal, assuming they went above it."
Shaking his head, Chu answered, "Sure, and they might hear us. We're quiet, but you never know. No, we'll maintain course to intercept Charlemagne."