**THIS REVIEW CONTAINS SPOILERS**
This book might appeal more to people who were counselors at a summer camp than it did to me and I think the age group it's meant for will probably like it. This was much more about the counselor aspect than the whole summer camp experience.
I felt the mystery in this one was a bit boring. The THEN parts weren't even that long ago and there wasn't much of a mystery there since we find out what happened pretty much right away. Also, I hate it so much when teenagers are dating for six weeks and are so in love and making future plans. Can we please start giving 17 and 18-year-olds a bit more credit than that? The NOW mystery was just another rich people doing something bad trope which is one of my least favorites. My biggest gripe with this book is that I have been a Type 1 diabetic for 37 years. If a non-diabetic person is injected with insulin, they may not die at all and it is definitely not an instantaneous death. Plus, you do not carry around insulin in the hot summer sun all day unless you have it in a cooler or with an icepack because it can go bad and lose its potency.
I did like the friendship between Goldie, Ava, and Imogen in this book and I really liked the actual summer camp parts, but the camp seemed to be more of a backdrop for the boring mystery than the focus of the book. With the blood on the cover, I was also expecting some summer camp gore. I didn't hate this one, I read most of it in one day and it kept me slightly entertained, but I definitely didn't love it.
Don't take my word for this one. I know there is an audience for this book and others will love it, it just wasn't the book for me.