🏚️TODAY'S CASE

The Haunted Mansion Mystery

⭐⭐ Medium
📜 THE STORY

The old mansion at 13 Euler Street has been making strange noises at night. Locals think it's haunted, but Detective AhaStep suspects math codes! Decode the secrets hidden within...

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Manh mối 1

Mở cánh cổng sắt

Cánh cổng có bảng mã: "Tìm x biết 3x + 7 = 28". Nhập giá trị x để mở cổng.

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