Niels Steensen, as he was born, is probably the most important scientist you’ve never heard of. Many consider him the father of geology and a pioneer in anatomy. He’s the guy who figured out that the lower the strata of rock, the older the rock and specimens therein. Unfortunately, upon his conversion from Lutheranism to Catholicism in 1667, and, not coincidentally, his last major scientific work was finished in 1668. After that, Steensen, also known as Nicolo Steno, abandoned his scientific studies, became a priest at age 37 and then a bishop two years after his ordination. Steno became a central figure in the Counter-Reformation and actually banned the works of Baruch Spinoza.

Not that you’ll discover most of that in this hagiography to the beatified (ergo the <i>Blessed</i> of the subtitle) but not yet canonized onetime scientist and physician by training. The children’s book relates how a 28-year-old Nicolo Steno, summoned by Fernando d’Medici, grand duke of Florence (yes, of THOSE Medicis), figured out that so-called tongue stones, used for their nonexistent curing properties, were actually fossils. Steno’s attempt to explain how fossil shark teeth were buried on mountains far from the ocean led to his using geometry to understand rock strata and discover what faults were. “This humble and holy genius was the first to see the outlines of a secret history written in the rocks and in the fossils they contained” (p. 46). Too bad Steno’s conversion put a stop to one of the greatest scientific minds in history.

In the interest of full disclosure, I received this book from NetGalley, Word on Fire Publishing and Votive in exchange for an honest review.

The Riddle of the Tongue-Stones is one of my favourite kinds of books: the kind that reveal true (often hitherto-unheard) stories that are often more fascinating and wonderful than things that are made up. I really enjoyed reading about the Danish scientist whose restless curiosity led to such an impressive discovery (a discovery that served to pioneer branches of historical scientific research that continue to present day). The language and the art are beautiful. Altogether, a stand-out book.

Early on, I thought I probably wouldn't like the book because the opening pages were a bit brutal for me (I am a genuine softie when it comes to animals). However, the fact is that this is a true story. The text was simply telling it like it was, harsh as that may be.

I especially liked some of the author's own commentary, and erudite treatment of themes arising from the narrative. Very well done.

I was excited to give this book a read. I have followed Thomas on social media for a few years. And read some of his articles across numerous Catholic Sites. This was a really exciting read. The description of the book states:

“Journey into the exciting life of Nicolas Steno, the father of geology whose passion for truth led him to groundbreaking scientific discovery and a deep religious devotion. Interwoven into this biography of a scientist and Catholic bishop is the story of fossils and the hidden history of the earth beneath our feet. With an extensive glossary of scientific terms and delightful field-guide sketches, this beautifully crafted book will inspire any young person eager to learn about the natural world and its Creator.”

The book is very engaging. Once I started reading it I could just not put it down. I had to stop reading to pick my son up for work, and it very hard. It is a real page turner. The volume is written for a Middle grade or tween audience, but to be honest anyone or any age could enjoy this fascinating story. The book ends with these words:

“And it all began that day in 1666 when the enormous shark head arrived on Steno’s dissecting table. IT took Nicholas Steno’s inquisitive and tenacious mind to discern the hidden connection between shark teeth and tongue-stones and to relentlessly pursue the riddle until he uncovered the answer. God has written his truth in two great books. – the Book of Scripture and the Book of Nature. Nicholas Steno had the knowledge and wisdom to read and learn from them both.”

The illustrations are wonderful and really add to the story. As do the side boxes explaining terms, called ‘Word Studies’. It was great to read and I believe my 16 year old son is going to read it next.

A great read, and will make a wonderful addition to any home, school or church library! A great little volume I can easily recommend.