First-time novelist Sands has written an exciting and self-assured tale of alchemy and dark secrets set during the late-17th-century reign of King Charles II. Fourteen-year-old orphan Christopher Rowe is lucky to be apprenticed to a kindly apothecary, Master Benedict Blackthorn. But someone—the Cult of the Archangel, it is rumored—is murdering London's apothecaries, believing that members of the Apothecary's Guild are concealing a dangerous secret. Christopher is an easygoing boy, fond of pranks and experiments (the book opens with his ill-advised and ill-fated attempt at mixing up some gunpowder), but after Master Benedict is assaulted, he finds himself on the run, pursued by the murderous henchmen of a rival apothecary and the dangerous Lord Richard Ashcombe, His Majesty's Warden. Sands adeptly balances the novel's darker turns with moments of levity and humor, and fills the book with nicely detailed characters and historical background—plus lots of explosions. It's a story that should have broad appeal, while especially intriguing readers with an existing interest in chemistry, history, and decoding puzzles. Ages 10–14. Agent: Daniel Lazar, Writers House. (Sept.)

A murder mystery set in 17th century London, this action-packed historical fiction novel doesn't let up until the very end. Christopher Rowe is an apothecary apprentice during the days of Charles II's return to the throne. The streets of London are dangerous, but Londoners are excited to have their king back. Christopher's master is kind, and Christopher is thriving. But the murder of some of the city's most prominent apothecaries has everyone worried. Christopher suspects a rival apothecary might be behind the murders. After his master is found dead, Christopher races to save the world from a terrible power. There are graphic descriptions of torture and injuries, so this is better suited for mature readers.

Gr 4–6—An auspicious debut middle grade novel. Set in the 1600s, the story revolves around Christopher Rowe, the apprentice to a Master Apothecary. After losing his master, Christopher begins to unravel a series of complex codes that his master had, unbeknownst to Chris, been preparing him to solve all along. The more that the protagonist uncovers, the more he finds himself in danger, along with his loyal-to-a-fault best friend. The story is well paced, managing not only to keep readers hooked but also second guessing everything they think they know. Sands integrates a series of fun and interesting riddles and codes with chemistry concepts—no easy feat. The ending is dynamic and rewarding, with just the right blend of the fantastical and realistic. One of the true triumphs is the author's ability to create a character who feels accurate for the time period, while also displaying a modern sensibility that will keep readers engaged. The action does get intense but would still be appropriate for upper elementary school students. VERDICT This is an excellent story for readers who enjoy puzzles, action, and fantasy; keep an eye out for future installments.—Chad Lane, Easton Elementary, Wye Mills, MD