Rook & Quinn: The Vantage Point Conspiracy

When real estate mogul Nathaniel Cross is found dead in his penthouse at The Aurelius, one of Manhattan's most exclusive residential towers, the official story is a heart attack behind a locked door. But private investigator Lucian Rook and criminal profiler Elara Quinn are called in by Cross's estranged daughter, who refuses to believe her father simply died of natural causes on the same night his personal safe was found empty.
What begins as a single suspicious death unravels into something far larger: a hidden network of blackmail threading through boardrooms, city hall, and the highest floors of Manhattan society, where secrets are currency and silence is bought at whatever price keeps the city's most powerful men comfortable. As Rook and Quinn pull at the threads Cross left behind, they realize his death wasn't the end of the network's reach - it was the beginning of someone else's plan to inherit it.