In his first book of original research for four years, Jon Downes visits the Antillean island of Puerto Rico, to which he has led two expeditions - in 1998 and 2004. Together with noted researcher Nick Redfern he goes in search of the grotesque vampiric chupacabra, believing that it can - finally - be categorised within a zoological frame of reference rather than a purely paranormal one. Along the way he uncovers mystery after mystery, has a run in with terrorists, art historians, and even has his garden buzzed by a UFO. By turns both terrifying and funny, this remarkable book is a real tour de force by one of the world's foremost cryptozoological researchers.