Place the charger on a level surface facing magnetic north. Ring a small bell (or tap a wine glass) three times to 'clear the sonic field.'

The Nautilus Gold has never given him a problem since. But sometimes, late at night, he swears he hears the battery hum a sea shanty—one his drowned grandfather used to sing.

If the subject lies, the battery will undergo 'thermal runaway' in 4 minutes. To abort, recite the Exide Credo from memory.

The charger beeped twice. The display cleared. Then, softly, it began to charge—a gentle 2-amp float charge, the kind you'd use for winter storage. The battery stopped swelling. The crack sealed itself. The screen read:

There were the usual sections: Safety, Mounting, Specifications. But after page 16, things changed. Page 17 was titled:

COVENANT RESTORED. WELCOME BACK, ARTHUR. DO NOT SKIP RECONDITIONING AGAIN.

He sat there for an hour, watching the percentage climb from 12% to 100%. When it finished, the charger powered down and played a little chime—a cheerful, mundane sound, like a microwave finishing popcorn. Arthur never told anyone what happened. He kept the manual in a Ziploc bag next to his bed. Every time he charged the battery, he followed the steps: clean the terminals, face north, and before pressing , he whispers, "I remember the deep."

The charger itself was a beautiful beast—industrial yellow, with a digital display that glowed like an angry wasp. Arthur plugged it in, clamped the leads onto his deep-cycle battery, and pressed the big green button labeled . The display flickered, then read: SULFATED. RECOND? Y/N