Twodeadbodiesandtoomanycoincidencestoignore-inthisoutdoorsmystery,specialagentSamRiversmuststopamurderousconspiracy.AsaspecialagentfortheUSFish&WildlifeService,SamRivershasresearchedandstudiedavarietyofanimals.He’svisitingsixthgradersatHopkinsElementarytosharephotographsoftheMonarchbutterfly--andhe’sbroughtalonghisdrug-sniffingwolfdog,Gray,togivestudentsademonstrationofhispartner’sremarkableskills.Grayfindsasampledrugpacket,hiddenbySam,butthat’snotall.Thewolfdogkeepsfollowinghisnose,leadingSamtoautilityroomwheretheydiscovertheschool’sjanitor,dead.Localpolicewriteitoffasadrugoverdose,butSamisnostrangertocrimescenes.Hesuspectsfoulplay.WhenSamandGraycomeuponasecondvictim,thecoincidencesaretoogreattoignore.Samstartsturningoverrocks--andwhatslithersoutismoreinsidiousthananyonecouldhaveforetold.Sam’sinstinctstellhimthere’llbemoredeaths,butthoseinstinctsputhimatoddswithconventionallawenforcement.Armedwithhisknowledgeofthenaturalworldandhiswolfdogcompanion,Sammustuncoveranswerstoquestionsthatfewothersbelieveexist.TheDenverPostcallsSamRiversthe“predator’spredator.“InKillingMonarchs,naturalhistorywriterCaryJ.GriffithbringsbackSamforhisthirdmystery--athrillingnovelfilledwithactionandsuspense.
