The Fibonacci Murders (Howard County Mysteries, #1)

"I start with zero. Nobody dies today."

The strange note delivered to Howard County, Maryland Detective Lieutenant Rick Peller proves to be a warning shot. Soon Peller and his protégés Detective Sergeants Corina Montufar and Eric Dumas are pursuing a cunning killer basing murders on the Fibonacci series, a mathematical sequence in which each number is the sum of the preceding two. And the only thing Peller knows for sure is that the series never ends.

As the murderer switches up methods, loca...