After treating the wound, Lü Jiamu picked up White Brow and locked it in a small cage, measuring 50cm in length, width, and height.
The Monkey Mountain exhibit was quite old, and so was the back house; there was only one large room. If they wanted to separate a macaque, the only option was to isolate it in a small cage, where it couldn't even stretch its tail out.
When the old Monkey Mountain was first built, there was no consideration given to various needs of the macaques, such as sickness. The mindset was that they were not like more precious class one protected animals, like tigers, which required separate enclosures. Macaques were prefixed as common— if one died, they'd simply buy another.
White Brow realized that after the treatment it wasn't set free, but instead was locked in a cramped cage. It immediately went berserk, frantically leaping up and down inside and amidst enraged, loud squealing, violently rattled the iron door of the cage.