The Deposed Empress's Feline Spy

Seraphina Everett is framed by half-sister Rosalind Everett. Her father faces execution. Imperial Cat Drake helps her escape. She is imprisoned again. Drake gathers evidence of Rosalind's plot to murder the emperor. Seraphina saves the poisoned emperor, exposes Rosalind. She saves her father. Declining Empress title, she purges corruption, stabilizes the state with Drake.