How can she love the king of kings without forsaking her Lord of lords?

Kasia grew up in a poor Jewish home with more siblings than luxuries. But
when a chance encounter forces her to the palace of Xerxes, she becomes a
concubine to the richest man in the world. She alone, of all Xerxes' wives,
loves the man beneath the crown. She alone, of all his wives, holds the
heart of the king of kings.

Traveling with Xerxes through Europe as he mounts a war against Greece,
Kasia knows enemies surround her, but they're not the Spartans or
Athenians. The threat lies with those close to the king who hate her
people. She determines to put her trust in Jehovah–even if it costs her her
marriage.

Years of prayers are answered when Kasia's childhood friend arrives at the
palace after the war, but even as she determines to see Esther crowned in
place of the bloodthirsty former queen, she knows the true battle is far
from over. How far will her enemies go to see her undone?

Combining the biblical account of Esther with Herodotus's Histories, Jewel
of Persia is the story of a love that nearly destroys an empire . . . and
the friendship that saves a nation.