Pettersen, Siri: - Siri Pettersen made her sensational debut in 2013 with the Norwegian publication of Odin's Child, the first book in The Raven Rings trilogy, which has earned numerous awards and nomiations at home and abroad. Siri has a background as a designer and comics creator. Her roots are in Finnsnes and Trondheim, but she now lives in Oslo, where you're likely to find her in a coffee shop. According to fellow writers, her superpower is "mega-motivation", which she describes as the ability to inspire other creative souls.