Return (The Invasion Chronicles. Book 4): A Science Fiction Thriller

Different narrator than books 1-3. Reads well generally, but bad poor on character voices.

SPOILERS: Books 1 & 2 are quite good, action-packed and interesting. Book 3, not so much but with interesting bits, leaving your fingers crossed for a recovery in book 4. Well, it seems the author just got tired for this last book. The story devolves into an unartful and predictable sci-fi plot soaked in teenage infatuation. Author forgets to connect an important happening in 1st or 2nd book to any of the other books. (What was point of drawing of alien ship? Why wasn't it discussed again, or did I miss something?)

Finished listening to the story just to say I finished to the series, but if you listened to books 1-3 you probably already know the ending...