I loved this book. It keeps you entertained and makes you want to keep reading.
The plot can be divided in three main themes: the action, the humor and the relationships.
The action starts right away, with investigation, infiltration and very funny undercover conversations.
*SPOILER* And when I mean the action elevated, it elevated: nuclear bombs, helicopters and machine guns.
The "villains's big scheme" is well thought of, too. One of the hardest things of writing a spy book, to me, is to create a believable scheme. Not something too silly, like world domination.
Most of the humor, this time, was directed toward Erica-
*SPOILER* from her personality flipping like a coin whenever she went undercover, or her mistakes, or even when Zoe tried to spark a conversation about "girl talk" and Erica was like what the heck are you talking about??
Erica's one of my favorite characters and seeing her act as the craziest teenager ever (even if just her undercover) was both hilarious and unsettling.
Jessica is an interesting character. Not much of a description except that she has hair and is comparable to Erica, but that's even more vague because there wasn't much description of Erica either.
It's revealed that Zoe absolutely dislikes Warren, poor him, but I take that back because he was being a jerk the whole time.
As for Mike, his presence definitely turned the tables; the part where he was calculating which girl was better was pretty funny.
He's a smart kid, probably worthy of joining the Spy Academy, which will be interesting to see how Ben will react to that.
To finish up, this was, in my opinion, the best book of the series so far.
Things have really elevated, more characters have risen up in importance, more questions remain unanswered.
