Petra: City in Stone:

In an ancient city carved from stone, a desperate woman searches for peace.
In AD 106, a single mother can be certain of one thing―destitution.
Cassia flees to Petra with her six-year-old son to seek refuge in the loving arms of family, but discovers the great stone city is not what she imagined.
And family cannot be trusted.
When a secret reveals her son's true bloodline, the boy becomes the target of a royal conspiracy, led by a queen who serves demonic power.
Now in her darkest hour, Cassia e...