Intrigued by her ‘black sheep’ great-uncle, Ruth Bonetti pieces together the motives that propelled his flight. Finnish relatives share a treasure-trove of letters that provide answers to the many questions raised by Karl Johan’s quest for freedom. Why did Russian military police pursue him as far as Suez? Why did he publish under a pen-name? And, most intriguing of all, why did he implore his family to burn his letters?