What is the biggest cliffhanger that ever forced you to immediately buy the next volume? Let us know in the comments—but no spoilers!

Digital readers know this pain intimately. You tap the screen to go to the next page, and instead of text, you get a pop-up asking for your credit card. You were reading peacefully, and now you are being held for ransom by a piece of software. The only currency? Your impulse buy budget.

Your heart sinks. Your eyes widen. You look at the clock, then at the bookstore’s closing time, then back at your wallet. The panic sets in.