It was Grandma .
He opened the .mobi in his old, trusted editor. The raw HTML looked normal at first—clean chapter breaks, standard spans. But as he scrolled toward the end, he saw it. A block of code he didn't write, embedded deep within the final chapter. edit .mobi
Version 2.0 was active.
<!-- <p class="ending" version="2.0">He turned, closed the door gently, and stayed.</p> --> It was Grandma