It's pretty weird at points, yeah. The good guys are centaur-pegasus aliens, and there's a ducking creepy scene describing how the protagonist is cradled naked by some sort of telepathic tentacle-hentai yeti aliens at the end of the book. The thing they do with the string explaining how they distort space to travel through the cosmos is simple but admirably clever, and the bad guy is basic but still cool, in a sort of conformitive way.
Unless you're reading into its broader messages, though, like I wasn't when I was fucking 13 or whatever, it's not very good, in my opinion. It flat-out doesn't explain how people like Albert Einstein fight off the wannabe "Fantastic Four: Silver Surfer" sequel wannabe-Galactus, overdone intangible "darkness" thing that swarms around Earth and takes about once and then dropped, and the children are fucking intolerable. The young boy is super fucking punchable, as he's so smart he doesn't learn how to fucking read before starting school because he doesn't want other kids to be alienated from him for being so smart, and how the author rarely describes the children, or ANY character, expressing any sort of active emotion, besides the time one do the centaur ladies cried for who gives-a-fuck reason. For all I knew, the kids were numb-brained, dead-pan faced through the whole story, and from what I remember they really approached the whole galactic adventure with WAY too much casualty.
I read it a long time ago, so keep that in mind, but I'm still not going to watch it when it comes out.