As of my last knowledge update in April 2023, Jenna Burtenshaw is a British author known for her young adult fantasy novels. She is best recognized for her "Wintercraft" series, which began with the book "Shadowcry" (also known as "Wintercraft" in some editions), published in 2011. The series is set in a dark, gothic world and features themes of necromancy, magic, and a protagonist discovering her own unique abilities. Burtenshaw’s writing is often characterized by a rich, atmospheric setting and complex characters. Information about her life and career outside of her published works may not be widely publicized or well-known, so for the most recent updates or a more comprehensive overview, an online search or visit to her official channels, if she has any, would provide the latest details.