Nell and her big sister Layla are so close Nell used to believe her name was Nellayla. Nell is starting high school now and Layla's a junior, and Nell has high hopes for the year. But Layla is growing distant, and has a secret to protect--a secret that Nell suspects, then knows, and is bound by the sisterly code to keep. Even though keeping it will tear them apart. Even though spilling it will tear them apart. 
 Nell has some of her own dramas going on--boy trouble, soccer, play practice--but the bulk of this story is about two sisters, and knowing when--or if--to betray a trust. Great for high school readers.