Buried Secrets by Joseph Finder

Winner of the Strand Critics Award for Best Novel in 2011.

Nick has returned to his old home town of Boston to set up his own shop. There he's urgently summoned by an old family friend. Hedge fund titan Marshall Marcus desperately needs Nick's help. His teenage daughter, Alexandra, has just been kidnapped.

Her abduction was clearly a sophisticated, professional job, done with extraordinary precision, leaving no trace evidence. Alexandra, whom Nick has known since she was an infant, is now buried alive, held prisoner in an underground crypt, a camera trained on her, her suffering streaming live over the internet for all to see. She's been left with a limited supply of food and water and, if her father doesn't meet the demands of her shadowy kidnappers, she'll die.

And as Nick begins to probe, he discovers that his old friend Marshall Marcus seems to have been running a Ponzi scheme. His fund has collapsed, the FBI has arrested him, and now he's become the most hated man in America. He has a lot of powerful enemies who may have the motivation to go after his daughter. But to find out who's holding Alexandra Marcus hostage, Nick has to find out why. And once he does, he uncovers an astonishing conspiracy that reaches up to the highest levels of government.

If he's going to find Alexandra, he has to flush out and confront some of the most deadly opponents ever...

This book is part of the "Nick Heller" series.
Here are some other books from this series: