Ye Fan didn't stop the two Witch Children and the two Sovereign Sorcerers from leaving.
There are also Witch Emperor-level powerhouses in the Witch tribe, against which Ye Fan wasn't confident.
It wouldn't be a problem if the minor henchmen from the Witch tribe died, but if both the Witch Children and the Sovereign Sorcerers were to die, Ye Fan was afraid the Witch Emperor from the Witch tribe might personally intervene.
The Ye Family was currently not strong enough and still needed time to develop.
Letting a few members of the Witch tribe escape in exchange for a stable period of growth for the Ye Family was a compromise Ye Fan was willing to make.
With no interference from the Witch tribe, the mighty forces of the Dayu Empire began advancing unimpeded, reclaiming three states.
As the three states fell under the control of the Dayu Empire, its momentum grew stronger and stronger.
The volume of the Destiny Golden Dragon was increasing at a fast pace.