There was no choice but to flee.
The Old Buddha had gone mad, launching a murderous rampage against the Noble Families and plundering their treasure vaults.
Rather than waiting inside Heavenly Phoenix City to be retributed by the Old Buddha upon her return, it was better to flee immediately.
As for why not band together and wipe out the Old Buddha's treasury,
it wasn't that they didn't want to, but that they didn't dare, nor could they.
Even though the Old Buddha had gone out to kill, there was still a powerful legion stationed within her Imperial Palace.
The number of this legion was not large, yet it was more than enough to defeat the combined forces of the Noble Families currently within the City.
Of course, if before the ambush on the Death Lord, these noble clans hadn't dispatched most of their family forces to participate in the action, they might still have been able to unite and attack.
Now, however, it was completely impossible.