Poll

I voted for Aground simply because it's the only one I own and I haven't read it yet.

All look interesting, though, so was a hard pick

I read Death Going Down and enjoyed it. I’m going with Tapping the Source, I love the beach, sooooo that made it easier for me.

I voted for Aground because I already read the second John Ingram book, bot knowing it is part of a series. Dead Calm has also been filmed, a good thriller with a very young Nicole Kidman and Sam Neill.
But I put a bookmark on the Argentinian story, and I hope I can get to it even if it will not win the poll.