These Michael Vey books apparently end on some very big cliffhangers, including and especially this one, making you read the books fast but I haven't bought Hunt for Jade Dragon yet because I'm scared of waiting another six months for the next part.
Anyway, Michael awakens after a giant wreck of the Elgen that has turned him and the Electroclan into the most wanted criminals in Peru. Do you think Hatch will calm down a bit after not releasing Michael's mom as per requested, and the result destroyed their entire Starxource Plant? No way! Infact, Hatch is now taking over the entire board, who has a fleet of boats, the main one being the Ampere, and they plan to head to a tiny island named Tuvalu to invade the entire country, who because of their short population wouldn't last fifteen minutes with the Elgen in their area with their main flag staying the main flag. Bottom line, Michael meets a new electric kid with an inventive way for a name and a secret weapon for most of the other group, probably. Meanwhile, Michael's other friends got sent into a Peruvian jail and he must now go on a giant hike with only two friends while avoiding the Elgen.
Now, for spoilers, there is a main character death, and after it happens, the book spends a lot of time grieving over it, which is sweet and probably as realistic as possible if it happened in real life, which gives everyone new thoughts, but there are some new thoughts that I really wish weren't there. A lot of the book involves going through a routine, and I knew if it kept going, I'd probably not enjoy the rest of the series. Also, there are a few torture scenes that involve Hatch, which all the more makes him a great antagonist. Still, I'd prefer reading the book from Michael's perspective rather than Hatch's, except when Hatch gets angry. And Michael Vey: Battle of the Ampere is not a train wreck in the series, still being exciting and actually more descriptive of the environments than ever before. It's just not quite as good as the first two.