The Sin In The Steel is a fantastic debut, full of twists and turns and excellent world building. "A Sherlockian teenager determined to upend her society"? Sign me up! I absolutely adore when authors blend classic mystery elements with a deeply engaging fantasy world, and Ryan Van Loan didn't disappoint in either department. As a huge sucker for any book that features pirates and unique fantastical religious entities, TSITS was right up my alley. The only thing that kept me from giving this the full 5 stars is that the pacing in the second half of the book is noticeably slower than in the first, but there is a banging ending that left me incredibly hungry for the next installment in the series.