Saikawa and Nishinosono return to the camp, putting off trying to find a solution to the case. But they can't stop thinking about it. They go back to the lab and investigate Dr. Shiki's rooms again, where they find a strange number that is a clue.
Deflated balloons.
.بالونات مفرغة
Luftballons ohne Luft.
Globos desinflados.
Globos desinflados.
des ballons dégonflés,
dei palloncini sgonfi,
Bexigas vazias.