After the instance boss was defeated, the instance collapsed almost instantly. However, the collapse didn't start from the deepest part of the instance; it began simultaneously in every section of the instance.
Whether it was Jeremy, still in the special space created by Mortal Combat, or Ritchie, deep inside the instance, they both sensed the collapse immediately.
Ritchie wasn't exactly sure what had happened, but he could guess that Jeremy must have somehow managed to defeat the instance boss. In this situation, Ritchie naturally chose to leave the instance without hesitation.
Ritchie used his newly acquired ring, releasing the two shadows he had sealed earlier. Under Ritchie's control, the two shadows rushed toward the instance's exit at maximum speed. Ritchie grabbed hold of them and swiftly reached the exit.
Just as Ritchie arrived at the exit, the instance completely collapsed.
