Seven of YA lit's sleuthing teens

At the BN Teen Blog Dahlia Adler tagged seven favorite YA sleuthing teens, including:
Ink and Ashes, by Valynne E. Maetani

Claire and her brothers have always believed that their father died of a heart attack a decade earlier, but suddenly, everything seems suspect when she comes across a letter that proves that he knew their stepfather. After all, there’s no reason for everyone to have kept