The death of the black tortoise marked the end of the beast's attacks on the humans. This allowed the expansion of the city walls to go unhindered for the next 13 days.
After it was over, a special group of ash corps were sent to the mine to extract what was left of the double-layered mines.
The process was dangerous because mistakes could lead to further explosions and there were still the chances of attacks from beasts. So the mining process was estimated to take around a month.
Camilla's unit as well as other ash corps units had been immediately redeployed to protect and assist in the mega constructions taking place all around the city.
As for Blake and other special ops units, they had been placed on standby to tackle any problems that might occur especially from external factors like gangs.