Crypt Of The Shadowking

The sixth book in the Harper series set in the world of Forgotten Realms. The evil Zhentarim attempts to take over the richest of the Caravan Cities. A mysterious and beautiful messenger convinces Caledan to undertake one final reckless mission - Caledan must seek an ancient magic to counter the dark conspiracy of the Harpers' nemesis. But a terrible secret lies beneath the city.