I loved the Yucatan setting and the core mystery of this novel. The main concept is adapted from an old SF book featuring the same Doctor, but I appreciate how it was transplanted into this setting with the political undercurrent of the late 1800's. Most of the supporting cast are quite spunky and really stood out. Unfortunately I do feel like the two main characters don't have much of a relationship; they also tend to be a little one-note and frustrating.

The audiobook narration was also quite high quality particularly in the use of Mexican, French, and English accents. The narrator (Gisela Chípe) really brought the characters to life with craft and energy.