Rob Ruggenberg (1946-2019) was, until he was 23, just as much of an adventurer as some of his protagonists. For six years, he worked for the Dutch Royal Navy and travelled all over the world. When he later went into journalism, he kept on travelling. He made his debut as an author at the age of sixty with Het verraad van Waterdunen. This adventure story about child slaves during the Eighty Years’ War won a Vlag & Wimpel. In 2012, IJsbarbaar (2011) also received this award from the Griffel jury. Ruggenberg’s books are believable because of their combination of unfamiliar historical facts and his powerful imagination.