Book excerpt: The quiet New York suburb of Yonkers hides a history of hauntings. Now converted into apartments, old Public School 13 is the site of strange apparitions that may be ghosts of former students and teachers who died in a tragic fire. The Boyce Thompson Institute's lofty goal of solving world hunger was never met, and unfulfilled spirits are said to lurk in its abandoned laboratory. Wealthy colonial landowners still watch over stately historic homes like Philipse Manor Hall. Even the iconic Untermeyer Park is a playground for the otherworldly. Local ghost investigator Jason Medina reveals these and other ghosts of Yonkers.