Blueness is a work of science fiction on the theme of time travel which was penned by author Karen Stensgaard, and it forms the second novel of The Aquamarine Sea series. Following the events of book one, Aquavit, we return to the life of the go-getting businesswoman Kat Jensen as she determinedly boards her pleasure cruise to escape her busy life. But on board the Danish clipper, where digital tech is banned and a 19th-century dress code is encouraged, Kat soon realizes that the old-timey adventure is more realistic than she thought. Returning to modern-day New York is going to be an eye-opening and epic task, with plenty of surprises along the way. Author Karen Stensgaard presents a truly unique concept in this novel, which forms part of a continuing series of bizarre adventures for her central heroine Kat. The character development of both Kat and the people around her on the clipper is truly excellent, adding a level of realism and relatability which stops the time travel plot becoming too clichéd and over the top. The balance of genres is really well observed, keeping the story interesting with unexpected twists, but also grounding it emotionally with Kat’s development arc and allowing readers to fall into this surreal and entertaining world with her. One can only guess where the series will go next, but overall, Blueness is a thrilling adventure tale with plenty of laughs and is highly recommended for readers looking for a well-written chick lit novel with a unique concept.