J J Connington 
Jack-in-the-Box [EPUB ebook] 

When recently exhumed church relics are stolen from a small English village the theft is quickly followed by four murders.The joint inheritance of a piece of property supplies a motive but the cause of death is mystery. Cue Sir Clinton Driffield, who investigates and makes an on-the-spot arrest of the culprits and their super-scientific death machine.’J.J. Connington’s stories are always attractive’ Sunday Times