A very nicely done variation on the "closed room" mystery. Our heroine, Lara, an antique dealer from Canada, goes on a vacation with her best friend to a "life-list" destination: Easter Island. The friend, Moira, has always dreamed of seeing the giant heads and hugging them. So they travel to Rapa Nui, as the island is officially named, the "navel of the world" -- a small (25 square mile) bit of volcanic rock floating in the middle of the ocean between Polynesia and South America. When they arrive at the hotel, there is a Congress taking place -- a gathering of Rapa Nui and Moai (the giant heads) enthusiasts, which will include lectures and tours and history and such. What a fabulous opportunity! They sign up, only to figure out as time goes on that this is the "lunatic fringe" of Rapa Nui fanatics, made up mostly of amateur enthusiasts, one self-promoting adventurer/discoverer, a film crew for the self-promoter, and a few starving academics. And the tensions within the group are intense, to say the least, even before people start turning up dead.
I was fascinated by the history and cultural information included in this book, which is very much an organic part of the mystery as it unfolds, and I came away from the book interested in visiting Rapa Nui if it weren't so darn difficult and expensive to get to. The characters are well done, both the people associated with the Congress (like Lara, I will add an item to my life list of never participating in any gathering called a Congress --- the one in this book was almost as bad as the U.S. Congress, though not quite as divided or self-serving) and the people of Rapa Nui itself. And the mystery is well-crafted, with several plausible red herrings and good reasons to suspect all sorts of people, and a nice unfolding of the solution.