Quadrangulation, an intense novel following four characters whose lives intersect, recounts a four-year period that goes from peaceful to terrifying, as events whirl out of control.----Josh Miller is a London oral surgeon and Jo-anne is his wife of 20 years. Belinda, 22, is Joshs former surgery assistant, while Craig is Belindas boyfriend and travelling companion.----Out of the blue, Josh is stunned when his home is invaded, their beloved dogs poisoned, Jo-annes motor car defaced and an obscene message is painted on a wall of their house. Nothing points to a perpetrator, but then Josh remembers …----Three years before, he casually invited Belinda on a scuba diving trip to Egypt and is surprised when she agrees. Although concerned that Craig might consider himself more than just a platonic travelling companion, Josh allows his vanity to prevail and the trip proceeds with devastating consequences.----Will insatiable lust for revenge at the perceived destruction of a relationship lead to further violence?