I don’t know who “Full Fathom Five, Inc” (the copyright holder) is, but it sounds like a book packager. I don’t like the idea of packagers – makes the books seem more written for business rather than for the love of the story. Thus the stories themselves are often a bit shallow.
Such is the case with The Nightworld. We barely get any details on the interesting stuff (Higgs particles, darkness all the time, the Optimus Prime device, a virus), and instead just get a run-of-the-mill thriller that tries to appeal to the Life As We Knew It crowd, but lacks the depth. It’s very short, so your male teen should speed through it, and the ending is a cliff-hanger, spelling sequel-bait. It’s a fun read, but I really wanted more details on the interesting stuff.