検索キーワード： 著者 "Sonbeam Books" すべてのカテゴリー

This audiobook is narrated by an AI Voice. A buried clue. A mysterious cipher. A summer they won’t forget. At Maple Grove Elementary, summer school was supposed to be calm. But when a curious group known as the Silver Key Society discovers something strange during a campus cleanup project...

This audiobook is narrated by an AI Voice. The trophies are missing. The teachers don’t seem to care. But the Silver Key Society knows a mystery when they see one. Just days before Maple Grove Elementary’s big Field Day, the trophy case is completely empty—no ribbons, no medals, not even a...

This audiobook is narrated by an AI Voice. Join the Silver Key Society as they tackle their most important case yet! When a mysterious library lockdown hides more than just dusty shelves, four clever friends must follow clues, unlock secrets, and protect the school’s history. Perfect for young...