Blackbox (novel)Blackbox is the first novel by British writer Nick Walker.PlotA stowaway dies on board a flight.Major themesA major theme of the book is the six degrees of separation, the theory that people are linked by a surprisingly small number of connections.StyleThe book is written as a countdown of 840 chapters, some as short as a few words. The author creates an atmosphere which has been compared to those in novels by Chris Morris and J. G. Ballard.ReceptionThe book was longlisted for the British Book Award and the Whitbread First Novel Award.