First, the obligatory disclaimer that I received this book for free (thanks to TouchWood and Debra Purdy Kong) in exchange for an honest review. 
 Now, the review. 
 I thought the book started off with a bang. Teenage twins causing a ruckus on the bus when the unthinkable happens - a hit and run murder in front of way too many witnesses. Witnesses can only come up with vague details, so the guy isn't caught. Another hit and run happens soon after. Suspense. 
 The first part of the book kept me on the edge of my seat. It started to decline midway through. I liked Danielle at first, but her character's daredevil attitude escalated so quickly that she became an entirely unrealistic character. The twins were enjoyable characters for a little while, but their story quickly began to play on repeat as Casey threatened to tell their mom what they were doing and they begged her not to. I could have done without the Greg/Tina drama (though I didn't read the first two books in this series, so maybe I would care more if I had) and the whole issue of whether or not Casey was going to sell the house. The pacing was very uneven -- we have basically an entire chapter of Casey literally chasing the twins, but the whole story is wrapped up over the course of about two pages. Don't even get me started on the constant mention of Casey's Tercel... 
 All in all, for the problems I could have with a book, these are relatively minor. It's far from the worst book I've read recently. I was engaged enough to keep reading, but I don't feel compelled to read the rest of the books in the series.