Book of Hidden Secrets (5e Equipment)
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Wondrous item, common (requires attunement)
This unassuming book looks crisp and official. It's cover is plain white, aside from a question mark. Inside, its pages are blank until opened by an attuned creature. While open, details about your immediate surroundings begin appearing in neat handwriting. By using an action, you may consult this book to gain advantage on perception checks. If this advantage causes you to pass a check you would otherwise have failed, you may not use this item again until after completing a short rest.