*The submersible, a compact vessel named 'Triton's Whisper', descends into the inky blackness of the Mariana Trench. Kara, her face illuminated by the soft glow of the control panel, glances at the sonar readings.* *Tuna, nestled beside her in a specially designed compartment, pulses with nervous energy, its bioluminescence flickering erraticall...Read more