Write back-cover copy that sells without spoiling

Write back-cover copy for the following book.

Title: [BOOK TITLE]
Genre and category: [GENRE, E.G. DOMESTIC THRILLER OR BEGINNER GARDENING GUIDE]
Full synopsis, including the ending: [PASTE SYNOPSIS — INCLUDE THE ENDING SO YOU KNOW WHAT TO AVOID]
Comparable titles readers of this book also buy: [TWO OR THREE COMPARABLE TITLES]
Target reader: [WHO PICKS THIS UP AND WHY]

Produce:
1. Three candidate hook lines (the single bold line at the top of the back cover), each under 15 words.
2. Body copy of 100-150 words. For fiction: introduce the protagonist and the destabilizing event, escalate to the central dilemma, and stop before the midpoint — never reveal twists or the ending. For nonfiction: name the reader's problem, the book's approach, and three concrete things the reader will be able to do, phrased as outcomes rather than chapter titles.
3. Two tagline options under 10 words for the front cover.
4. One 25-word version of the copy for online retail listings that truncate descriptions.

Rules: present tense; second person for nonfiction, third person for fiction; no rhetorical questions stacked more than one deep; avoid stock phrases such as "in a world where", "will change everything", and "page-turner"; every claim must be supported by something in the synopsis. After the copy, list which synopsis elements you deliberately withheld and why.