”YoumustsurelyrememberthegreatWorthingdonbankbusiness，”saidHolmes。”Fivemenwereinit——thesefourandafifthcalledCartwright。Tobin，thecare-taker，wasmurdered，andthethievesgotawaywithseventhousandpounds。Thiswasin1875。Theywereallfivearrested，buttheevidenceagainstthemwasbynomeansconclusive。ThisBlessingtonorSutton，whowastheworstofthegang，turnedinformer。OnhisevidenceCartwrightwashangedandtheotherthreegotfifteenyearsapiece。Whentheygotouttheotherday，whichwassomeyearsbeforetheirfullterm，theysetthemselves，asyouperceive，tohuntdownthetraitorandtoavengethedeathoftheircomradeuponhim。Twicetheytriedtogetathimandfailed；athirdtime，yousee，itcameoff。IsthereanythingfurtherwhichIcanexplain，Dr。
　　Trevelyan?””Ithinkyouhavemadeitallremarkableclear，”saidthedoctor。”Nodoubtthedayonwhichhewasperturbedwasthedaywhenhehadseenoftheirreleaseinthenewspapers。””Quiteso。Histalkaboutaburglarywasthemerestblind。””Butwhycouldhenottellyouthis?””Well，mydearsir，knowingthevindictivecharacterofhisoldassociates，hewastryingtohidehisownidentityfromeverybodyaslongashecould。Hissecretwasashamefulone，andhecouldnotbringhimselftodivulgeit。However，wretchashewas，hewasstilllivingundertheshieldofBritishlaw，andIhavenodoubt，Inspector，thatyouwillseethat，thoughthatshieldmayfailtoguard，theswordofjusticeisstilltheretoavenge。”
　　SuchwerethesingularcircumstancesinconnectionwiththeResidentPatientandtheBrookStreetDoctor。
　　Fromthatnightnothinghasbeenseenofthethreemurderersbythepolice，anditissurmisedatScotlandYardthattheywereamongthepassengersoftheill-fatedsteamerNorahCreina，whichwaslostsomeyearsagowithallhandsuponthePortuguesecoast，someleaguestothenorthofOporto。Theproceedingsagainstthepagebrokedownforwantofevidence，andtheBrookStreetMystery，asitwascalled，hasneveruntilnowbeenfullydealtwithinanypublicprint。
　　AdventureIX
　　TheGreekInterpreterDuringmylongandintimateacquaintancewithMr。
　　SherlockHolmesIhadneverheardhimrefertohisrelations，andhardlyevertohisownearlylife。
　　Thisreticenceuponhisparthadincreasedthesomewhatinhumaneffectwhichheproduceduponme，untilsometimesIfoundmyselfregardinghimasanisolatedphenomenon，abrainwithoutaheart，asdeficientinhumansympathyashewaspre-eminentinintelligence。Hisaversiontowomenandhisdisinclinationtoformnewfriendshipswerebothtypicalofhisunemotionalcharacter，butnotmoresothanhiscompletesuppressionofeveryreferencetohisownpeople。Ihadcometobelievethathewasanorphanwithnorelativesliving，butoneday，tomyverygreatsurprise，hebegantotalktomeabouthisbrother。
　　Itwasafterteaonasummerevening，andtheconversation，whichhadroamedinadesultory，spasmodicfashionfromgolfclubstothecausesofthechangeintheobliquityoftheecliptic，cameroundatlasttothequestionofatavismandhereditaryaptitudes。Thepointunderdiscussionwas，howfaranysingulargiftinanindividualwasduetohisancestryandhowfartohisownearlytraining。”Inyourowncase，”saidI，”fromallthatyouhavetoldme，itseemsobviousthatyourfacultyofobservationandyourpeculiarfacilityfordeductionareduetoyourownsystematictraining。””Tosomeextent，”heanswered，thoughtfully。”Myancestorswerecountrysquires，whoappeartohaveledmuchthesamelifeasisnaturaltotheirclass。But，nonetheless，myturnthatwayisinmyveins，andmayhavecomewithmygrandmother，whowasthesisterofVernet，theFrenchartist。Artinthebloodisliabletotakethestrangestforms。””Buthowdoyouknowthatitishereditary?””BecausemybrotherMycroftpossessesitinalargerdegreethanIdo。”
　　Thiswasnewstomeindeed。IftherewereanothermanwithsuchsingularpowersinEngland，howwasitthatneitherpolicenorpublichadheardofhim?Iputthequestion，withahintthatitwasmycompanion’smodestywhichmadehimacknowledgehisbrotherashissuperior。Holmeslaughedatmysuggestion。”MydearWatson，”saidhe，”Icannotagreewiththosewhorankmodestyamongthevirtues。Tothelogicianallthingsshouldbeseenexactlyastheyare，andtounderestimateone’sselfisasmuchadeparturefromtruthastoexaggerateone’sownpowers。WhenIsay，therefore，thatMycrofthasbetterpowersofobservationthanI，youmaytakeitthatIamspeakingtheexactandliteraltruth。””Isheyourjunior?””Sevenyearsmysenior。””Howcomesitthatheisunknown?””Oh，heisverywellknowninhisowncircle。””Where，then?””Well，intheDiogenesClub，forexample。”
　　Ihadneverheardoftheinstitution，andmyfacemusthaveproclaimedasmuch，forSherlockHolmespulledouthiswatch。”TheDiogenesClubisthequeerestclubinLondon，andMycroftoneofthequeerestmen。He’salwaystherefromquartertofivetotwentytoeight。It’ssixnow，soifyoucareforastrollthisbeautifuleveningIshallbeveryhappytointroduceyoutotwocuriosities。””Fiveminuteslaterwewereinthestreet，walkingtowardsRegent’sCircus。”Youwonder，”saidmycompanion，”whyitisthatMycroftdoesnotusehispowersfordetectivework。
　　Heisincapableofit。””ButIthoughtyousaid——””Isaidthathewasmysuperiorinobservationanddeduction。Iftheartofthedetectivebeganandendedinreasoningfromanarm-chair，mybrotherwouldbethegreatestcriminalagentthateverlived。Buthehasnoambitionandnoenergy。Hewillnotevengooutofhiswaytoverifyhisownsolution，andwouldratherbeconsideredwrongthantakethetroubletoprovehimselfright。AgainandagainIhavetakenaproblemtohim，andhavereceivedanexplanationwhichhasafterwardsprovedtobethecorrectone。Andyethewasabsolutelyincapableofworkingoutthepracticalpointswhichmustbegoneintobeforeacasecouldbelaidbeforeajudgeorjury。””Itisnothisprofession，then?””Bynomeans。Whatistomeameansoflivelihoodistohimthemeresthobbyofadilettante。Hehasanextraordinaryfacultyforfigures，andauditsthebooksinsomeofthegovernmentdepartments。MycroftlodgesinPallMall，andhewalksroundthecornerintoWhitehalleverymorningandbackeveryevening。
　　Fromyear’sendtoyear’sendhetakesnootherexercise，andisseennowhereelse，exceptonlyintheDiogenesClub，whichisjustoppositehisrooms。””Icannotrecallthename。””Verylikelynot。TherearemanymeninLondon，youknow，who，somefromshyness，somefrommisanthropy，havenowishforthecompanyoftheirfellows。Yettheyarenotaversetocomfortablechairsandthelatestperiodicals。ItisfortheconvenienceofthesethattheDiogenesClubwasstarted，anditnowcontainsthemostunsociableandunclubablemenintown。Nomemberispermittedtotaketheleastnoticeofanyotherone。SaveintheStranger’sRoom，notalkingis，underanycircumstances，allowed，andthreeoffences，ifbroughttothenoticeofthecommittee，renderthetalkerliabletoexpulsion。Mybrotherwasoneofthefounders，andIhavemyselffounditaverysoothingatmosphere。”
　　WehadreachedPallMallaswetalked，andwerewalkingdownitfromtheSt。James’send。SherlockHolmesstoppedatadoorsomelittledistancefromtheCarlton，and，cautioningmenottospeak，heledthewayintothehall。ThroughtheglasspanelingI
　　caughtaglimpseofalargeandluxuriousroom，inwhichaconsiderablenumberofmenweresittingaboutandreadingpapers，eachinhisownlittlenook。
　　HolmesshowedmeintoasmallchamberwhichlookedoutintoPallMall，andthen，leavingmeforaminute，hecamebackwithacompanionwhomIknewcouldonlybehisbrother。
　　MycroftHolmeswasamuchlargerandstoutermanthanSherlock。Hisbodywasabsolutelycorpulent，butisface，thoughmassive，hadpreservedsomethingofthesharpnessofexpressionwhichwassoremarkableinthatofhisbrother。Hiseyes，whichwereofapeculiarlylight，waterygray，seemedtoalwaysretainthatfar-away，introspectivelookwhichIhadonlyobservedinSherlock’swhenhewasexertinghisfullpowers。”Iamgladtomeetyou，sir，”saidhe，puttingoutabroad，fathandliketheflipperofaseal。”IhearofSherlockeverywheresinceyoubecamehischronicler。Bytheway，Sherlock，Iexpectedtoseeyouroundlastweek，toconsultmeoverthatManorHousecase。Ithoughtyoumightbealittleoutofyourdepth。””No，Isolvedit，”saidmyfriend，smiling。”ItwasAdams，ofcourse。””Yes，itwasAdams。””Iwassureofitfromthefirst。”Thetwosatdowntogetherinthebow-windowoftheclub。”Toanyonewhowishestostudymankindthisisthespot，”saidMycroft。”Lookatthemagnificenttypes！Lookatthesetwomenwhoarecomingtowardsus，forexample。””Thebilliard-markerandtheother?””Precisely。Whatdoyoumakeoftheother?”