Case 4: Vanishing Masterpiece

Case Summary:

A valuable painting titled "Luo Shen Fu" worth over 100 million was stolen from the top-floor treasure vault of the Central Art Museum in F City. The police department has been ordered to solve the case within 3 days, as a national treasure is involved.

The treasure vault is normally not open to the public, only temporarily opened twice a year during special exhibitions in March and October.

The museum has 4 floors total, and the treasure vault is located on the topmost floor, with only one entrance. The museum director has always been the sole keeper of the vault's key, and there has never been a reported loss. The vault is constructed with reinforced concrete and covered with tempered glass on top. It is equipped with infrared security and two surveillance cameras. The "Luo Shen Fu" painting was displayed in the central display case, which was also locked. The top glass was shattered by a hard object, causing the national treasure to go missing, but the other exhibits in the vault were left unharmed.

The estimated time of the incident is around 2 AM.

Gameplay:

Players must first search the crime scene for clues, then piece together the evidence in the mind map to uncover the truth. You can use the clue radar to locate physical evidence, and the clue analyzer to assist with deduction when uncertain about a clue.