You turn the page.
Both of the open pages are clearly stamped with the words BANNED IN ALL JURISDICTIONS.
You notice that the words beneath the stamps are nothing like the bland gardening book you expected - it describes in graphic detail how "freshly-killed human corpses make the absolute best fertiliser."
Just as you're about to throw the book away, the chair starts to rock violently back and forth. As you grab the armrests to propel yourself off of it, you notice chains now tightly tie your entire body to the chair. You scream, but the chair rocks more and more violently, knocking your head against its back with extreme force.
Your vision clouds, and you feel the breath being squeezed out of you.
And the last thing you see is the book, chained to your legs, with an illustrated jack-o-lantern staring back at you.