بنی راز را کشف می‌کند: مجموعهٔ بچه‌های واگن، جلد نوزدهم

When Benny and Henry get summer jobs at a department store in town, they don't expect to be solving mysteries at work. But when an expensive vase disappears, the salespeople receive strange notes, and the jewelry display is tampered with, it's up to Benny to uncover the truth! Two brothers take summer jobs at a department store where a series of peculiar events brings them under suspicion. Benny figures out some puzzling events in a department store