Once Two Sisters A Novel.

Perfect for fans of Alafair Burke and Megan Collins, Sarah Warburton's debut novel that explores the dangerous bond between sisters. When her sister goes missing, Zoe assumes it's just another one of her estranged sibling's stunts-but the danger is all too real. Zoe Hallett and her sister, Ava, are the precocious offspring of two pioneering scientists, but the sisters have been estranged for years. When Zoe reads a news story about Ava's myste...