I　ascended　the　stair；　I　met　Mr。　Rucastle　coming　out　through　this　door；
  his　keys　in　his　hand；　and　a　look　on　his　face　which　made　him　a　very
  different　person　to　the　round；　jovial　man　to　whom　I　was　accustomed。
  His　cheeks　were　red；　his　brow　was　all　crinkled　with　anger；　and　the
  veins　stood　out　at　his　temples　with　passion。　He　locked　the　door　and
  hurried　past　me　without　a　word　or　a　look。
  〃This　aroused　my　curiosity；　so　when　I　went　out　for　a　walk　in　the
  grounds　with　my　charge；　I　strolled　round　to　the　side　from　which　I
  could　see　the　windows　of　this　part　of　the　house。　There　were　four　of
  them　in　a　row；　three　of　which　were　simply　dirty；　while　the　fourth
  was　shuttered　up。　They　were　evidently　all　deserted。　As　I　strolled　up
  and　down；　glancing　at　them　occasionally；　Mr。　Rucastle　came　out　to
  me；　looking　as　merry　and　jovial　as　ever。
  〃'Ah！'　said　he；　'you　must　not　think　me　rude　if　I　passed　you
  without　a　word；　my　dear　young　lady。　I　was　preoccupied　with　business
  matters。'
  〃I　assured　him　that　I　was　not　offended。　'By　the　way；'　said　I；　'you
  seem　to　have　quite　a　suite　of　spare　rooms　up　there；　and　one　of　them
  has　the　shutters　up。'
  〃He　looked　surprised　and；　as　it　seemed　to　me；　a　little　startled　at
  my　remark。
  〃'Photography　is　one　of　my　hobbies；'　said　he。　'I　have　made　my　dark
  room　up　there。　But；　dear　me！　what　an　observant　young　lady　we　have　come
  upon。　Who　would　have　believed　it？'　He　spoke　in　a　jesting　tone；　but
  there　was　no　jest　in　his　eyes　as　he　looked　at　me。　I　read　suspicion
  there　and　annoyance；　but　no　jest。
  〃Well；　Mr。　Holmes；　from　the　moment　that　I　understood　that　there
  was　something　about　that　suite　of　rooms　which　I　was　not　to　know；　I　was
  all　on　fire　to　go　over　them。　It　was　not　mere　curiosity；　though　I
  have　my　share　of　that。　It　was　more　a　feeling　of　duty…a　feeling　that
  some　good　might　come　from　my　penetrating　to　this　place。　They　talk　of
  woman's　instinct；　perhaps　it　was　woman's　instinct　which　gave　me　that
  feeling。　At　any　rate；　it　was　there；　and　I　was　keenly　on　the　lookout
  for　any　chance　to　pass　the　forbidden　door。
  〃It　was　only　yesterday　that　the　chance　came。　I　may　tell　you　that；
  besides　Mr。　Rucastle；　both　Toller　and　his　wife　find　something　to　do　in
  these　deserted　rooms；　and　I　once　saw　him　carrying　a　large　black
  linen　bag　with　him　through　the　door。　Recently　he　has　been　drinking
  hard；　and　yesterday　evening　he　was　very　drunk；　and　when　I　came
  upstairs　there　was　the　key　in　the　door。　I　have　no　doubt　at　all　that　he
  had　left　it　there。　Mr。　and　Mrs。　Rucastle　were　both　downstairs；　and　the
  child　was　with　them；　so　that　I　had　an　admirable　opportunity。　I
  turned　the　key　gently　in　the　lock；　opened　the　door；　and　slipped
  through。
  〃There　was　a　little　passage　in　front　of　me；　unpapered　and
  uncarpeted；　which　turned　at　a　right　angle　at　the　farther　end。　Round
  this　corner　were　three　doors　in　a　line；　the　first　and　third　of　which
  were　open。　They　each　led　into　an　empty　room；　dusty　and　cheerless；　with
  two　windows　in　the　one　and　one　in　the　other；　so　thick　with　dirt　that
  the　evening　light　glimmered　dimly　through　them。　The　centre　door　was
  closed；　and　across　the　outside　of　it　had　been　fastened　one　of　the
  broad　bars　of　an　iron　bed；　padlocked　at　one　end　to　a　ring　in　the　wall；
  and　fastened　at　the　other　with　stout　cord。　The　door　itself　was
  locked　as　well；　and　the　key　was　not　there。　This　barricaded　door
  corresponded　clearly　with　the　shuttered　window　outside；　and　yet　I
  could　see　by　the　glimmer　from　beneath　it　that　the　room　was　not　in
  darkness。　Evidently　there　was　a　skylight　which　let　in　light　from
  above。　As　I　stood　in　the　passage　gazing　at　the　sinister　door　and
  wondering　what　secret　it　might　veil；　I　suddenly　heard　the　sound　of
  steps　within　the　room　and　saw　a　shadow　pass　backward　and　forward
  against　the　little　slit　of　dim　light　which　shone　out　from　under　the
  door。　A　mad；　unreasoning　terror　rose　up　in　me　at　the　sight；　Mr。
  Holmes。　My　overstrung　nerves　failed　me　suddenly；　and　I　turned　and
  ran…ran　as　though　some　dreadful　hand　were　behind　me　clutching　at　the
  skirt　of　my　dress。　I　rushed　down　the　passage；　through　the　door；　and
  straight　into　the　arms　of　Mr。　Rucastle；　who　was　waiting　outside。
  〃'So；'　said　he；　smiling；　'it　was　you；　then。　I　thought　that　it　must
  be　when　I　saw　the　door　open。'
  〃'Oh；　I　am　so　frightened！'　I　panted。
  〃'My　dear　young　lady！　my　dear　young　lady！'…you　cannot　think　how
  caressing　and　soothing　his　manner　was…；'and　what　has　frightened　you；
  my　dear　lady？'
  〃But　his　voice　was　just　a　little　too　coaxing。　He　overdid　it。　I　was
  keenly　on　my　guard　against　him。
  'I　was　foolish　enough　to　go　into　the　empty　wing；'　I　answered。　'But
  it　is　so　lonely　and　eerie　in　this　dim　light　that　I　was　frightened
  and　ran　out　again。　Oh；　it　is　so　dreadfully　still　in　there！'
  〃'Only　that？'　said　he；　looking　at　me　keenly。
  〃'Why；　what　did　you　think？'　I　asked。
  〃'Why　do　you　think　that　I　lock　this　door？'
  〃'I　am　sure　that　I　do　not　know。'
  〃'It　is　to　keep　people　out　who　have　no　business　there。　Do　you
  see？'　He　was　still　smiling　in　the　most　amiable　manner。
  〃'I　am　sure　if　I　had　known…'
  〃'Well；　then；　you　know　now。　And　if　you　ever　put　your　foot　over
  that　threshold　again'…here　in　an　instant　the　smile　hardened　into　a
  grin　of　rage；　and　he　glared　down　at　me　with　the　face　of　a
  demon…'I'll　throw　you　to　the　mastiff。'
  〃I　was　so　terrified　that　I　do　not　know　what　I　did。　I　suppose　that
  I　must　have　rushed　past　him　into　my　room。　I　remember　nothing　until　I
  found　myself　lying　on　my　bed　trembling　all　over。　Then　I　thought　of
  you；　Mr。　Holmes。　I　could　not　live　there　longer　without　some　advice。
  I　was　frightened　of　the　house；　of　the　man；　of　the　woman；　of　the
  servants；　even　of　the　child。　They　were　all　horrible　to　me。　If　I
  could　only　bring　you　down　all　would　be　well。　Of　course　I　might　have
  fled　from　the　house；　but　my　curiosity　was　almost　as　strong　as　my
  fears。　My　mind　was　soon　made　up。　I　would　send　you　a　wire。　I　put　on
  my　hat　and　cloak；　went　down　to　the　office；　which　is　about　half　a
  mile　from　the　house；　and　then　returned；　feeling　very　much　easier。　A
  horrible　doubt　came　into　my　mind　as　I　approached　the　door　lest　the　dog
  might　be　loose；　but　I　remembered　that　Toller　had　drunk　himself　into
  a　state　of　insensibility　that　evening；　and　I　knew　that　he　was　the　only
  one　in　the　household　who　had　any　influence　with　the　savage　creature；
  or　who　would　venture　to　set　him　free。　I　slipped　in　and　lay　awake
  half　the　night　in　my　joy　at　the　thought　of　seeing　you。　I　had　no
  difficulty　in　getting　leave　to　come　into　Winchester　this　morning；
  but　I　must　be　back　before　three　o'clock；　for　Mr。　and　Mrs。　Rucastle　are
  going　on　a　visit；　and　will　be　away　all　the　evening；　so　that　I　must
  look　after　the　child。　Now　I　have　told　you　all　my　adventures；　Mr。
  Holmes；　and　I　should　be　very　glad　if　you　could　tell　me　what　it　all
  means；　and；　above　all；　what　I　should　do。〃
  Holmes　and　I　had　listened　spellbound　to　this　extraordinary　story。　My
  friend　rose　now　and　paced　up　and　down　the　room；　his　hands　in　his
  pockets；　and　an　expression　of　the　most　profound　gravity　upon　his　face。
  〃Is　Toller　still　drunk？〃　he　asked。
  〃Yes。　I　heard　his　wife　tell　Mrs。　Rucastle　that　she　could　do
  nothing　with　him。〃
  〃That　is　well。　And　the　Rucastles　go　out　to…night？〃
  〃Yes。〃
  〃Is　there　a　cellar　with　a　good　strong　lock？〃
  〃Yes；　the　wine…cellar。〃
  〃You　seem　to　me　to　have　acted　all　through　this　matter　like　a　very
  brave　and　sensible　girl；　Miss　Hunter。　Do　you　think　that　you　could
  perform　one　more　feat？　I　should　not　ask　it　of　you　if　I　did　not　think
  you　a　quite　exceptional　woman。〃
  〃I　will　try。　What　is　it？〃
  〃We　shall　be　at　the　Copper　Beeches　by　seven　o'clock；　my　friend　and
  I。　The　Rucastles　will　be　gone　by　that　time；　and　Toller　will；　we
  hope；　be　incapable。　There　only　remains　Mrs。　Toller；　who　might　give　the
  alarm。　If　you　could　send　her　into　the　cellar　on　some　errand；　and
  then　turn　the　key　upon　her；　you　would　facilitate　matters　immensely。〃
  〃I　will　do　it。〃
  〃Excellent！　We　shall　then　look　thoroughly　into　the　affair。　Of　course
  there　is　only　one　feasible　explanation。　You　have　been　brought　there　to
  personate　someone；　and　the　real　person　is　imprisoned　in　this
  chamber。　That　is　obvious。　As　to　who　this　prisoner　is；　I　have　no
  doubt　that　it　is　the　daughter；　Miss　Alice　Rucastle；　if　I　remember
  right；　who　was　said　to　have　gone　to　America。　You　were　chosen；
  doubtless；　as　resembling　her　in　height；　figure；　and　the　colour　of　your
  hair。　Hers　had　been　cut　off；　very　possibly　in　some　illness　through
  which　she　has　passed；　and　so；　of　course；　yours　had　to　be　sacrificed
  also。　By　a　curious　chance　you　came　upon　her　tresses。　The　man　in　the
  road　was　undoubtedly　some　friend　of　hers…possibly　her　fiance…and　no
  doubt；　as　you　wore　the　girl's　dress　and　were　so　like　her；　he　was
  convinced　from　your　laughter；　whenever　he　saw　you；　and　afterwards　from
  your　gesture；　that　Miss　Rucastle　was　perfectly　happy；　and　that　she
  no　longer　desired　his　attentions。　The　dog　is　let　loose　at　night　to
  prevent　him　from　endeavouring　to　communicate　with　her。　So　much　is
  fairly　clear。　The　most　serious　point　in　the　case　is　the　disposition　of
  the　child。〃
  〃What　on　earth　has　that　t