You can find Book One on Amazon:

More than twenty-five years ago, a sworn bodyguard and a reluctant bride fled an angry prince and hid.

Now the children of that pair are in the world, one a prisoner in a silken cage, one a wanderer seeking cultivation in Essence, and one rising the ranks of the army under an assumed name. Meanwhile the prince who became an emperor has a very long memory. And his own children are beginning to make their mark in the world . . .