5 out of 5 stars *****
Scientists are involved with primate communication instead of dolphins in this second book of the Breakthrough series. Countries, like China and Russia, along with their scientists and military forces are active as antagonists in the story. The pivotal points of the plot are rich with thrilling adventure and death that leads to despair for the protagonists. From the middle of the narrative to the approach of the end, excitement and intrigue simmer until characters from the first book turn the tide in favor of the heroes, but not without a cost. The climax crescendos and ends with open questions and disturbing thoughts in the midst of apparent victory.
Michael C. Grumley elaborates on the romantic aspect between two of the main characters in this book. With clarity in the relationship comes concern for each other's safety. Life appears more fragile when one dances with death. Closure is only temporary in the Breakthrough world. What ends with a sigh of relief is not happily ever after; instead, gratitude for the moment suffices until the loose ends of this escapade are secure.
The science fiction contribution to Grumley's adventures are smart and thought provoking. The Leap explanation is understandably logical but the ambitious push of mankind for resources strains wisdom with an urgency that, often times, is reckless to obtain the discoveries that create power, control, and wealth. Grumley's scientific breakthroughs initiate crises which require the best of mankind to overcome the worst.