While I know (and apologize) that this isn't a review of the actual book (I may write one of those later), I'd like to give these parents my everyone-is-equal-please-be-kind soapbox speech. It starts with the complaints I've been seeing about the homosexual reference in this book:
In the House of Hades, Riordan has set up a minuscule section of the plot devoted to readers finding out that Nico is a homosexual character. In the actual context of the Percy Jackson series, the characters have had a ridiculous guessing game about who (at the time) 10-year-old Nico liked. Finally, they encounter the brutal Roman agent of love, Cupid, who forces Nico to *gasp* admit who he used to have a crush on. When it is revealed that it was Percy, the homosexuality is implied but is never again referenced. Frankly, if parents have a problem with a paragraph of homosexual allusion, and enough of one to label it Not For Kids, I'm not sure what they're doing on a friendly, accepting site like CSM.
Just so you know, Rick Riordan published something explaining his motivation to create a character like this. Here's the link:
Just scroll down until you see the question (How did you decide on Nico's character development in the House of Hades?), then click on it to read the letter.
I'd like close by begging parents not to be so hateful on this site. I'm sure that you love, and only want to do what you think is best for your kids, but don't be this extreme; I doubt your child even noticed the reference if they were young enough not to be aware of the issue.
Reviews with good grammar
(Yes, written by someone under 18 :D)