<human>: Out with the wee ones, my baby and my toddler and had half an hour to kill.  We were driving past the local library which has a great children's section with a small indoor "playground" of donated large plastic slides etc.

We go in and I tell the toddler to be quiet until we hit the playground. There is almost no one there and no one in the kids section except a middle aged gentleman reading a large hardback.

Explanation - the kids section has comfy love seats and couches. The adult section has a more modern feel to it and the chairs, for a larger individual, aren't as comfy for long reading.

So while I try to keep the kids from being too loud, it's pretty hard to keep a baby from the occasional squeel and the toddler forgets pretty quickly.

So grumpy man, every time my kids voices go above a library whisper, has to make a noise to "discreetly" let me know of his displeasure. From loud coughs while looking at me to shushing noises and loud sighs.

I tried to remind my toddler to use an inside voice, but really it's the children's section and he is like 20 feet from what is basically a play ground.

Finally, he gets up and stomps to the librarians desk and is pointing at us and clearly complaining about my awful kids. She made a helpless gesture and pointed him towards other seating. 

It's about time to go by now anyway so I pack up the kids and start to head out.

Now I see that he left his book and recognize it as the second to last book in a very popular series. An adult series where people die in the last two books.

Now there is a special hell for people who spoil stories, but I couldn't help myself. As we passed I said "sorry, but by the way isn't it sad how x, y, z die near the end of that series!"

We left quickly, I didn't even look back.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: guy was mad I let my kids be loud in a children's area so I ruined the ending to a series he was reading.