Apollo didn't know what Alyona was thinking, but his thoughts were focused on the strength of Crimson City. It wasn't weak—far from it. In addition to the formidable City Lord, he sensed several powerful auras hidden throughout the city.
However, despite this strength, they weren't sure how much damage they would endure or if they would even survive the coming threat.
The mission they had been given was to help the city survive, which implied that without their intervention, Crimson City was destined to be annihilated. This realization led him to believe that the Death Storm would be far more powerful than they had anticipated.
There are many limit-breaking realm warriors in the city, and they have well-reinforced walls to stop most of the attacks, but they cannot stop attacks from the sky or the strong zombies with strength above fourth rank.