From the series: Starbound

Starbound Heir: A prequel (The Starbound Series)

About

To save the last prince, they had to make him forget he was one.

Eight-year-old Prince Riven has only minutes to escape when Emperor Inimicus seizes Midros. His parents are left behind, his kingdom falls, and two men—Favir, his father’s former adviser, and Roman, a man far better with crops than spaceships—are given one impossible task:
Keep the prince alive.
For seven years, they run.
From crowded space stations to forgotten colonies, Riven grows up beneath false names, hiding the dragon-shaped mark that could reveal his bloodline. Some people want the lost prince dead. Others want to put him back on the throne. And Riven isn’t sure he wants to belong to either side.
Then the empire finds him.
With their ship failing and imperial vessels closing in, Favir and Roman are left with one desperate option: an escape capsule bound for occupied Earth—and a memory protocol capable of erasing everything Riven knows.
His kingdom.
His family.
Even his own name.
When the capsule crashes into the ruins of an Earth city, the boy beneath the rubble remembers nothing about the empire hunting him.
But the dragon on his hand remains.
And so does the secret hidden beneath his skin.

Before Starbound Orphans, there was a prince who had to forget who he was to survive.