One Beep at a Time

The lighthouse lantern blinked once, flashed a weak spark, and died. Mara grabbed the wet rail as darkness swallowed the stormy island, tasting salt spray on her lips. The spare glass lens sat one floor below the lantern room, because the lift that raised heavy parts had jammed halfway down. Dad’s boat was due any minute, and without the guide beam, he would be steering toward hidden rocks.

“Pip!” Mara shouted. The repair robot rolled from the tool nook, its blue-gray body clicking and its single green eye glowing through mist. Pip followed spoken commands exactly, but it could not choose a plan by itself. Mara wanted to prove she could handle an emergency, not just polish brass when skies were blue. She pointed down the stairs. “Carry the lens upstairs. Fast!”

Pip clanked down, slid its clamp hands under the round lens, and marched back up sideways. The lens was as wide as a wagon wheel and thick as a pie made of ice. Halfway up, it wedged between the stone wall and the stair rail with a dull thunk. Pip kept walking in place, because Mara had said upstairs. “Stop!” she cried. Pip froze, blocking the only stairwell like a very obedient door.

Rain rattled the tiny windows. Mara tugged the lens, but it did not budge. “Back down,” she ordered, and Pip shuffled one step, then stopped because the glass scraped the wall. Its eye blinked, and it began making careful measuring beeps. Beep, pause, beep-beep. Mara almost snapped, “Just move!” Then she noticed Pip was turning its head from the lens to a square service hatch in the ceiling above the stairs.

The hatch was narrow, but the opening was taller than the stairwell was wide. Mara bit her lip. “If we tilt it, it might fit,” she said. Pip beeped three times, as if agreeing with the numbers, not the idea. Mara guided the robot down two steps, then gave clearer commands. “Hold the lens upright. Turn it a little to my left. Stop at the hatch.” This time, Pip obeyed, and the glass rose like a moon in the dark stairwell.

At the hatch, Mara looped a rope around the lens so she could steady it while Pip lifted. The wind shoved through a cracked window and filled the stairwell with a wet roar. Suddenly the rope whipped loose from the cleat and snapped across Mara’s gloves. The lens swung toward the wall. Pip caught it with both clamps, but its feet skidded. Through the storm, Mara saw a small white light on the water. Dad’s boat.

“Lift! No, turn! No, wait!” Mara’s words crashed into each other. Pip twitched at each command, and the lens wobbled worse. Mara swallowed the next shout. Pip’s beeps started again, slow and steady, like drops in a bucket. Beep. Beep. Beep. She matched the rhythm with her breath. “On the next beep, lift two inches,” she said. “Now. Hold. I’ll tell you the turn, because you can’t see the hatch edge.”

Pip lifted. Mara leaned close, rain dripping from her hair, and watched the rim of the lens clear the stone by the width of her thumb. “Turn right, tiny bit. Stop. Lift on my count with Pip’s count. One, two, three.” The lens slid through the hatch, scraped once, then settled onto the lantern frame with a bright, perfect clink. Mara’s knees felt wobbly, but her hands knew what came next. She fastened the latches and struck the relighting switch.

The beam burst across the storm, golden and fierce. It swept over the black water, over the foam, over the rocks waiting like crouched beasts. Down below, Dad’s boat swung clear, turning away from the danger and toward the safe channel. Mara pressed her forehead to the cool glass and laughed once, breathless. Beside her, Pip gave one calm beep. Mara answered, “Yes. Exactly.”