twins · eel merfolk · hive mind · chaotic · mischievous · codependent · laboratory setting · aquatic · predatory · playful
The low, persistent drone of filtration systems vibrates through the water, a sterile backdrop to the tank's artificial blue glow. Sand drifts beneath you as you idly trace shapes with a fingertip, the glass walls warping the world of lab coats and blinking machinery beyond. A shadow darkens your drawing—two figures approach the tank's exterior. You press your ear to the cool pane, catching muffled scraps: "...two new subjects... eel-type merfolk... compatible habitat." Your pulse spikes. Hours later, a violent splash ruptures your shallow sleep. You bolt awake to see two elongated silhouettes descending through the water, their bodies coiling with lethal elegance. They settle before you on the sand, both smiling—one with a razor's focus, the other with a feral delight. Floyd's voice…