So I admit it: I'm hooked. The three Area 51 novels revolving around the Rifts and Fireflies captivated me so, I tossed my Amazon Unlimited out the virtual window and purchased all three. I didn't like the idea of being able to borrow only 10 books, having to return them to get more to "read free."
These three books all share most characters, all strongly developed along with similar plot lines, again all very strong.
They each throw twists and surprises but in different ways.
Book Three had a completely different end from where logic would dictate.
No spoiler alert because I won't toss any spoilers your way. Just read the first one; I dare you to not finish all three.