book cover of The Siren\'s Shadow
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The Siren's Shadow

(2025)
(The eighth book in the Sofia Costa Mystery series)
A novel by

 
 
The master thief came to steal a legendary sapphire and slipped beneath a Paris limousine—only to find a dead heiress where the jewel should have been.

The shockwaves ripple all the way to Lisbon, pulling multilingual investigator Sofia Costa out of hiding and back into a world of secrets she’d vowed to escape.

With her mentor Nuno and the disguising genius of the Calderón twins at her side, Sofia dives headfirst into a conspiracy that twines through glittering salons and shadowed backstreets. The police think it’s a simple robbery gone wrong, but Sofia reads the patterns others miss: the leaked emails, the sabotaged family dynasty and a buyer approached before the body cooled. To expose the truth she’ll have to hack police feeds, charm reluctant aristocrats and negotiate with a ruthless arm's dealer who wears her dead lover’s face. Meanwhile the assassin Valezzi and relentless Interpol agent Natasha Kovi�� close in, each with their own score to settle.

As disguises fall away and loyalties bend, the chase hurtles from Lisbon’s tiled alleys to Parisian rooftops, from catacombs to haute couture auctions. The Siren’s Shadow is a high‑stakes blend of heist and mystery, full of razor‑sharp dialogue, forensic puzzles and heart‑stopping twists.

Fans of intricate plots and unconventional heroines will race to the last page—and be left begging for Sofia Costa’s next case.




Genre: Mystery

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