ThereforeheisatMapleton。Letustakethatasaworkinghypothesisandseewhatitleadsusto。Thispartofthemoor,astheInspectorremarked,isveryhardanddry。ButiffallsawaytowardsMapleton,andyoucanseefromherethatthereisalonghollowoveryonder,whichmusthavebeenverywetonMondaynight。
Ifoursuppositioniscorrect,thenthehorsemusthavecrossedthat,andthereisthepointwhereweshouldlookforhistracks。”
Wehadbeenwalkingbrisklyduringthisconversation,andafewmoreminutesbroughtustothehollowinquestion。AtHolmes’requestIwalkeddownthebanktotheright,andhetotheleft,butIhadnottakenfiftypacesbeforeIheardhimgiveashout,andsawhimwavinghishandtome。Thetrackofahorsewasplainlyoutlinedinthesoftearthinfrontofhim,andtheshoewhichhetookfromhispocketexactlyfittedtheimpression。”Seethevalueofimagination,”saidHolmes。”ItistheonequalitywhichGregorylacks。Weimaginedwhatmighthavehappened,acteduponthesupposition,andfindourselvesjustified。Letusproceed。”
Wecrossedthemarshybottomandpassedoveraquarterofamileofdry,hardturf。Againthegroundsloped,andagainwecameonthetracks。Thenwelostthemforhalfamile,butonlytopickthemuponcemorequiteclosetoMapleton。ItwasHolmeswhosawthemfirst,andhestoodpointingwithalookoftriumphuponhisface。Aman’strackwasvisiblebesidethehorse’s。”Thehorsewasalonebefore,”Icried。”Quiteso。Itwasalonebefore。Hullo,whatisthis?”
ThedoubletrackturnedsharpoffandtookthedirectionofKing’sPyland。Homeswhistled,andwebothfollowedalongafterit。Hiseyeswereonthetrail,butIhappenedtolookalittletooneside,andsawtomysurprisethesametrackscomingbackagainintheoppositedirection。”Oneforyou,Watson,”saidHolmes,whenIpointeditout。”Youhavesavedusalongwalk,whichwouldhavebroughtusbackonourowntraces。Letusfollowthereturntrack。”