When Sherlock’s best friend Matthew Arnatt is captured, Sherlock, determined to get him back, sets off with his friend Virginia. As the pair jump onto a train to Philadelphia, they don’t realise that they are entangling themselves in the web of a plot that stinks of trickery.

Sherlock, Matthew and Virginia must foil a plot to invade Canada. By themselves. And trapped in a room with three hostile, killer reptiles, foiling any sort of plan doesn’t seem like an option.

This book was made original through the incorporation of unique and unusual animals. However, as I have found in all the Young Sherlock Holmes books, politics was too much the cause of the problems. Although politics are a realistic and strong reason for problems, it makes the book confusing and convoluted. Yet once again, the originality of the book’s plot pleases and surprises me, as does the unique villains that Sherlock manages to escape from every time. I would highly recommend this book to any ten-year-old and up, as any younger child may not understand the plot well enough.

I hope you enjoy this book as much as I did!