In his fourth page-turning adventure, Jack travels to London, where he must thwart a plan to steal the crown jewels while continuing his search for his lost brother. This volume includes fascinating geographical, cultural, and historical information about Great Britain.

Elizabeth Singer Hunt was raised in New Orleans, Louisiana, and spent her childhood surrounded by jazz music, Cajun food and the excitement of Mardi Gras. She moved to the UK in 1999 to study for her MA in Southeast Asian Studies before working as a brand and marketing consultant. Elizabeth's love of adventure and travel is what inspired her to create her children's book character, Secret Agent Jack Stalwart, a nine-year-old boy who travels the globe fighting crime. Elizabeth now lives in San Francisco with her husband and two children.