Case of the Twisted Twins Murders

BOOK THIRTEEN in the series: Twenty-nine year old identical twins set out to take revenge on Raymond Masters, the detective who sent their father to prison for murder 24 years before. They indicate they will kill someone at a national twin convention and promise that he won't be able to solve it, thus ending his 50 yearlong perfect crime fighting record. Identical DNA, prints and appearance should make it impossible to prove which twin was where doing what, when. A handsome young bellboy is (apparently) framed. Together he and Masters work to solve three homicides and two attempted murders. (The reader my want to take notes on this one )