Collision of Tides

Harriet's boots struck the metal deck in steady, purposeful strides as she made her way toward the bridge. The warmth of Callum's body had already faded, the sweat drying on her skin, leaving only the cool detachment of duty in its place. That was how it always was: intimacy discarded like an old shirt, replaced by the crisp, structured weight of command.

The ship hummed beneath her feet again, its familiar pulse thrumming through steel and bone. A captain learned to feel their vessel, to recognise its rhythms like the heartbeat of a lover. The Argus had always been steady beneath her: a beast of industry, reliable and enduring. But tonight, something in its pulse was off. A flicker. A hesitation.

She brushed the thought aside as she stepped through the reinforced doors of the bridge.

It was a contained world of quiet precision, the dim glow of screens casting sharp-edged shadows across the room. Crew members moved in coordinated efficiency, the air thick with the scent of stale coffee, sweat, and the ever-present salt of the sea.

"Captain," First Officer Ethan Vale greeted, handing her a tablet. "We're holding at position. Weather is clear, minimal surface traffic. Engineering reports ballast readjustments are complete."

Harriet took the tablet with a nod, her eyes scanning the data. Vale was a good officer: competent, steady, the kind of man who rarely spoke unless necessary. She liked that about him. No wasted breath, no unnecessary theatrics.

"Any issues?" she asked, not looking up.

Vale hesitated. A fraction of a second too long. "Not significant. There was a slight delay in response time from the starboard thrusters during repositioning. Walsh says it is within normal parameters."

Harriet's grip tightened slightly on the tablet. "A delay?"

"Less than a second," Vale confirmed. "Could be sensor lag, maybe a fluctuation in hydraulic pressure. It corrected itself almost immediately."

A second's delay might not seem like much in a casual conversation, but at sea, especially aboard a tanker like the Argus, one second could be the difference between a clean manoeuvre and a disaster. A ship this size did not stop or turn on a whim. Hesitation in a system meant hesitation in control.

Harriet turned her gaze to the large bridge windows, her sharp blue eyes scanning the inky darkness beyond. The ocean stretched in every direction, black and endless, its surface only occasionally broken by the distant blink of navigation beacons. One in particular caught her eye. A set of lights, stacked high, gliding slow: another ship, its silhouette massive against the night.

Vale followed her gaze. "Orion Star," he said. "Container vessel out of Singapore, en route to Rotterdam. They are holding position ahead of us, waiting for clearance to move on."

Harriet studied the ship. A steel giant, towering with neatly stacked containers like a floating monolith. She had seen thousands like it over the years, but something about its presence set her on edge.

"Any irregularities in their course?"

Vale shook his head. "Not according to AIS. Their movements have been standard. No deviation."

AIS painted a digital picture of every ship's position, heading, and speed. It was gospel in modern navigation, a network of data constantly shifting and updating, ensuring no vessel moved unseen. And yet, Harriet still felt uneasy.

Everything looked normal. It did not feel normal.

That nagging sensation pressed against the back of her mind like a warning she was not ready to acknowledge. "Double-check our own logs against AIS records," she instructed. "And make sure Walsh's diagnostic includes manual verification of the thruster response times. I do not like unexplained hesitation."

The ship hummed beneath her again, just slightly. A hesitation. A warning. But Harriet Caldwell did not believe in ghosts. Not yet.