(Thud)
Ogata Older Brother flared up in anger. "...You!"
Jiang Xia did not stop the brothers from arguing. Instead, he brought up something else. "As for the old man Sonoko and the others saw silently gliding across the corridor just now... that wasn't actually a person."
Mouri Ran: "?!"
Jiang Xia: "It was a sheet of paper."
Mouri Ran, who had been about to jump up in fright: "...W-what?"
Jiang Xia pulled open the room's door and pointed down the corridor. "All you need is a sheet of black paper. Cut it into the shape of a person, then stick it onto the glass window in the corridor.
"Do you remember the 'security loophole' the police mentioned earlier? The unlocked gate in the backyard wasn't blown open by the wind—it was deliberately pushed open.
"The glass with the black paper silhouette on it faced the open back door. That way, whenever a car passed outside the yard, its shifting Headlights would light up the corridor window and cast the corresponding shadow onto the paper door of the guest room.
"As the Headlights moved, the shadow would race from right to left—so the 'old man' you saw was clearly sprinting across the wooden floor, yet he made no sound at all."
Mouri Ran slapped her fist into her palm and finally remembered. "Now that you mention it, I think I remember—I really did vaguely hear an engine back then!"
"So that was it. What an ingenious plan." The first person to applaud was unexpectedly Ogata Older Brother. After saying that, the injured man with bandages wrapped around his head turned to his younger brother and said sarcastically, "I never realized you were so smart. You hid it well."
"How have you decided it was me?!" Ogata Younger Brother was speechless. "When