"Surely, it can't be possible to find two treasures in one summer. But that's exactly what Cassie and Enilsa are trying to do. While spending two weeks helping out at the Candlewick Inn, a property Cassie's cousin will soon inherit from their late Great-Aunt Sybil, the girls find several clues relating to something valuable hidden at the inn. While investigating, they receive messages from a psychic, and even a note from Great-Aunt Sybil herself." ― quoted from this book's product page on the author's website as of 2019-09-20.
Source · ISFDB CC BY 4.0