Douglas Preston earns his place among our best thriller writers with this well-considered solo novel. There is mystery and adventure galore.If I have any complaint with Tyrannosaur Canyon, it's that portions of this novel read slowly. Twice there are even chase scenes that feel ponderous. I grew impatient with the heroes and the villains for not winning their battles one way or the other. Having said that, I enjoyed this novel and will be looking for more of his solo work.Four stars.