What the hell are you waiting for?

The first merge of the groups happened right on the seventieth floor. What could easily become a disaster of people appearing through the gates at the same time, falling into each other and turning a relatively organized crowd into a panicked mess...

Thankfully, it didn't happen. Thanks to the organization and strict scheduling, people appeared at the seventieth-floor gate one by one, with relatively long gaps of time in between. 

'Thank God,' Tom thought, watching over the developing situation as more and more people amassed at the entry of the seventieth floor. 

The floor itself was already thoroughly cleaned from the monsters, with some of the small group leaders still standing guard throughout the corridors, watching out for any potential leftover monster.