Two small-town sisters. One mysterious artifact. No time to waste. When sisters Chloe and Lily from Upland, California discover a cryptic artifact called the Obsidian Eye, their small-town lives erupt into a race against time. As they unravel clues tied to secret societies, ancient mysteries, and local legends, danger lurks at every turn. With help from a martial artist, a hacker, and a robotics genius, the sisters' courage and bond are pushed to the limit. From Upland's quiet streets to Mt. Baldy's shadowy trails, the stakes couldn't be higher. The Obsidian Eye is perfect for teens who love decoding puzzles, uncovering secrets, and chasing thrilling adventures. The Obsidian Eye is Book 1 in the Secret Societies and The Sisterhood Sleuths mystery series.