"Not much suspension of disbelief"
I wanted to like this book. I've enjoyed other titles by the same author; his collaborations with Doug Preston are quite a bit of fun, in spite of their shortcomings.
But I just couldn't get into this one. Part of it may be my background in physics and the time I spent working with the Coast Guard; neither the science nor the marine details are particularly convincing, and I was distracted from the story by constant realizations that the real world just wouldn't work the way Child describes. And the characters didn't help, either: they were shallow and predictable, with no real convincing complexity or credible human detail, right off the back lot of a B picture.
I had to struggle to reach the end, I'm afraid.