This is a thrilling read about some depressing stuff. The depressing part comes from thinking about all the advantages that today's poachers have over today's law enforcement and what a thankless job it must be anyway,

The thrilling part comes from A. The main mystery concerning what is contained in the garden of Eden which is now located in France and B. the mystery the Olivier's must unravel in in order to save their new ancient garden.

The second mystery gets most of the story which can leave you a little unsatisfied but in order to maintain a quick tempo on the plot Tobias feels as if he must keep the characters moving.