Mademoiselle　and　the　death　of　the　keeper　are　the　work　of　one　and
  the　same　person。　　Mademoiselle　Stangerson's　murderer；　flying
  through　the　court；　was　fired　on；　it　was　thought　he　was　struck；
  perhaps　killed。　　As　a　matter　of　fact；　he　only　stumbled　at　the
  moment　of　his　disappearance　behind　the　corner　of　the　right　wing
  of　the　chateau。　　There　he　encountered　the　keeper　who；　no　doubt；
  tried　to　seize　him。　　The　murderer　had　in　his　hand　the　knife　with
  which　he　had　stabbed　Mademoiselle　Stangerson　and　with　this　he
  killed　the　keeper。〃
  This　very　simple　explanation　appeared　at　once　plausible　and
  satisfying。　　A　murmur　of　approbation　was　heard。
  〃And　the　murderer？　　What　became　of　him？〃　asked　the　President。
  〃He　was　evidently　hidden　in　an　obscure　corner　at　the　end　of　the
  court。　　After　the　people　had　left　the　court　carrying　with　them　the
  body　of　the　keeper；　the　murderer　quietly　made　his　escape。〃
  The　words　had　scarcely　left　Larsan's　mouth　when　from　the　back　of
  the　court　came　a　youthful　voice：
  〃I　agree　with　Frederic　Larsan　as　to　the　death　of　the　keeper；　but　I
  do　not　agree　with　him　as　to　the　way　the　murderer　escaped！〃
  Everybody　turned　round；　astonished。　　The　clerks　of　the　court　sprang
  towards　the　speaker；　calling　out　silence；　and　the　President　angrily
  ordered　the　intruder　to　be　immediately　expelled。　　The　same　clear
  voice；　however；　was　again　heard：
  〃It　is　I；　Monsieur　President　…　Joseph　Rouletabille！〃
  CHAPTER　XXVII
  In　Which　Joseph　Rouletabille　Appears　in　All　His　Glory
  The　excitement　was　extreme。　　Cries　from　fainting　women　were　to　be
  heard　amid　the　extraordinary　bustle　and　stir。　　The　〃majesty　of　the
  law〃　was　utterly　forgotten。　　The　President　tried　in　vain　to　make
  himself　heard。　　Rouletabille　made　his　way　forward　with　difficulty；
  but　by　dint　of　much　elbowing　reached　his　manager　and　greeted　him
  cordially。　　The　letter　was　passed　to　him　and　pocketing　it　he　turned
  to　the　witness…box。　　He　was　dressed　exactly　as　on　the　day　he　left
  me　even　to　the　ulster　over　his　arm。　Turning　to　the　President；　he
  said：
  〃I　beg　your　pardon；　Monsieur　President；　but　I　have　only　just　arrived
  from　America。　　The　steamer　was　late。　　My　name　is　Joseph　Rouletabille！〃
  The　silence　which　followed　his　stepping　into　the　witness…box　was
  broken　by　laughter　when　his　words　were　heard。　　Everybody　seemed
  relieved　and　glad　to　find　him　there；　as　if　in　the　expectation　of
  hearing　the　truth　at　last。
  But　the　President　was　extremely　incensed：
  〃So；　you　are　Joseph　Rouletabille；〃　he　replied；　〃well；　young　man；
  I'll　teach　you　what　comes　of　making　a　farce　of　justice。　　By　virtue
  of　my　discretionary　power；　I　hold　you　at　the　court's　disposition。〃
  〃I　ask　nothing　better；　Monsieur　President。　　I　have　come　here　for
  that　purpose。　　I　humbly　beg　the　court's　pardon　for　the　disturbance
  of　which　I　have　been　the　innocent　cause。　　I　beg　you　to　believe　that
  nobody　has　a　greater　respect　for　the　court　than　I　have。　　I　came　in
  as　I　could。〃　　He　smiled。
  〃Take　him　away！〃　ordered　the　President。
  Maitre　Henri　Robert　intervened。　　He　began　by　apologising　for　the
  young　man；　who；　he　said；　was　moved　only　by　the　best　intentions。
  He　made　the　President　understand　that　the　evidence　of　a　witness　who
  had　slept　at　the　Glandier　during　the　whole　of　that　eventful　week
  could　not　be　omitted；　and　the　present　witness；　moreover；　had　come
  to　name　the　real　murderer。
  〃Are　you　going　to　tell　us　who　the　murderer　was？〃　asked　the　President；
  somewhat　convinced　though　still　sceptical。
  〃I　have　come　for　that　purpose；　Monsieur　President！〃　replied
  Rouletabille。
  An　attempt　at　applause　was　silenced　by　the　usher。
  〃Joseph　Rouletabille；〃　said　Maitre　Henri　Robert；　〃has　not　been
  regularly　subpoenaed　as　a　witness；　but　I　hope；　Monsieur　President；
  you　will　examine　him　in　virtue　of　your　discretionary　powers。〃
  〃Very　well！〃　said　the　President；　〃we　will　question　him。　　But　we　must
  proceed　in　order。〃
  The　Advocate…General　rose：
  〃It　would；　perhaps；　be　better；〃　he　said；　〃if　the　young　man　were　to
  tell　us　now　whom　he　suspects。〃
  The　President　nodded　ironically：
  〃If　the　Advocate…General　attaches　importance　to　the　deposition　of
  Monsieur　Joseph　Rouletabille；　I　see　no　reason　why　this　witness
  should　not　give　us　the　name　of　the　murderer。〃
  A　pin　drop　could　have　been　heard。　　Rouletabille　stood　silent　looking
  sympathetically　at　Darzac；　who；　for　the　first　time　since　the　opening
  of　the　trial；　showed　himself　agitated。
  〃Well；〃　cried　the　President；　〃we　wait　for　the　name　of　the　murderer。〃
  Rouletabille；　feeling　in　his　waistcoat　pocket；　drew　his　watch　and；
  looking　at　it；　said：
  〃Monsieur　President；　I　cannot　name　the　murderer　before　half…past
  six　o'clock！〃
  Loud　murmurs　of　disappointment　filled　the　room。　　Some　of　the　lawyers
  were　heard　to　say：　〃He's　making　fun　of　us！〃
  The　President　in　a　stern　voice；　said：
  〃This　joke　has　gone　far　enough。　　You　may　retire；　Monsieur；　into　the
  witnesses'　room。　　I　hold　you　at　our　disposition。〃
  Rouletabille　protested。
  〃I　assure　you；　Monsieur　President；〃　he　cried　in　his　sharp；　clear
  voice；　〃that　when　I　do　name　the　murderer　you　will　understand　why
  I　could　not　speak　before　half…past　six。　　I　assert　this　on　my　honour。
  I　can；　however；　give　you　now　some　explanation　of　the　murder　of　the
  keeper。　　Monsieur　Frederic　Larsan；　who　has　seen　me　at　work　at　the
  Glandier；　can　tell　you　with　what　care　I　studied　this　case。　　I　found
  myself　compelled　to　differ　with　him　in　arresting　Monsieur　Robert
  Darzac；　who　is　innocent。　　Monsieur　Larsan　knows　of　my　good　faith
  and　knows　that　some　importance　may　be　attached　to　my　discoveries；
  which　have　often　corroborated　his　own。〃
  Frederic　Larsan　said：
  〃Monsieur　President；　it　will　be　interesting　to　hear　Monsieur　Joseph
  Rouletabille；　especially　as　he　differs　from　me。〃
  A　murmur　of　approbation　greeted　the　detective's　speech。　　He　was　a
  good　sportsman　and　accepted　the　challenge。　　The　struggle　between
  the　two　promised　to　be　exciting。
  As　the　President　remained　silent；　Frederic　Larsan　continued：
  〃We　agree　that　the　murderer　of　the　keeper　was　the　assailant　of
  Mademoiselle　Stangerson；　but　as　we　are　not　agreed　as　to　how　the
  murderer　escaped；　I　am　curious　to　hear　Monsieur　Rouletabille's
  explanation。〃
  〃I　have　no　doubt　you　are；〃　said　my　friend。
  General　laughter　foliowed　this　remark。　　The　President　angrily
  declared　that　if　it　was　repeated；　he　would　have　the　court　cleared。
  〃Now；　young　man；〃　said　the　President；　〃you　have　heard　Monsieur
  Frederic　Larsan；　how　did　the　murderer　get　away　from　the　court？〃
  Rouletabille　looked　at　Madame　Mathieu；　who　smiled　back　at　him　sadly。
  〃Since　Madame　Mathieu；〃　he　said；　〃has　freely　admitted　her　intimacy
  with　the　keeper　…〃
  〃Why；　it's　the　boy！〃　exclaimed　Daddy　Mathieu。
  〃Remove　that　man！〃　ordered　the　President。
  Mathieu　was　removed　from　the　court。　　Rouletabille　went　on：
  〃Since　she　has　made　this　confession；　I　am　free　to　tell　you　that　she
  often　met　the　keeper　at　night　on　the　first　floor　of　the　donjon；　in
  the　room　which　was　once　an　oratory。　　These　meetings　became　more
  frequent　when　her　husband　was　laid　up　by　his　rheumatism。　　She　gave
  him　morphine　to　ease　his　pain　and　to　give　herself　more　time　for　the
  meetings。　　Madame　Mathieu　came　to　the　chateau　that　night；　enveloped
  in　a　large　black　shawl　which　served　also　as　a　disguise。　　This　was
  the　phantom　that　disturbed　Daddy　Jacques。　　She　knew　how　to　imitate
  the　mewing　of　Mother　Angenoux'　cat　and　she　would　make　the　cries　to
  advise　the　keeper　of　her　presence。　　The　recent　repairs　of　the　donjon
  did　not　interfere　with　their　meetings　in　the　keeper's　old　room；　in
  the　donjon；　since　the　new　room　assigned　to　him　at　the　end　of　the
  right　wing　was　separated　from　the　steward's　room　by　a　partition　only。
  〃Previous　to　the　tragedy　in　the　courtyard　Madame　Mathieu　and　the
  keeper　left　the　donjon　together。　　I　learnt　these　facts　from　my
  examination　of　the　footmarks　in　the　court　the　next　morning。　　Bemier；
  the　concierge；　whom　I　had　stationed　behind　the　donjon　…　as　he　will
  explain　himself　…　could　not　see　what　passed　in　the　court。　　He　did
  not　reach　the　court　until　he　heard　the　revolver　shots；　and　then　he
  fired。　　When　the　woman　parted　from　the　man　she　went　towards　the　open
  gate　of　the　court；　while　he　returned　to　his　room。
  〃He　had　almost　reached　the　door　when　the　revolvers　rang　out。　　He
  had　just　reached　the　corner　when　a　shadow　bounded　by。　　Meanwhile；
  Madame　Mathieu；　surprised　by　the　revolver　shots　and　by　the　entrance
  of　people　into　the　court；　crouched　in　the　darkness。　　The　court　is
  a　large　one　and；　being　near　the　gate；　she　might　easily　have　passed
  out　unseen。　　But　she　remained　and　saw　the　body　being　carried　away。
  In　great　agony　of　mind　she　neared　the　vestibule　and　saw　the　dead
  body　of　her　lover　on　the　stairs　lit　up　by　Daddy　Jacques'　lantern。
  She　then　fled；　and　Daddy　Jacques　joined　her。
  〃That　same　night；　before　the　murder；　Daddy　Jacques　had　been　awakened
  by　the　cat's　cry；　and；　looking　through　his　window；　had　seen　the
  black　phantom。　　Hastily　dressing　himself　he　went　out　and　recognised
  her。　　He　is　an　old　friend　of　Madame　Mathieu；　and　when　she　saw　him
  she　had　to　tell　him　of　her　relations　with　the　keeper　and　begged　his
  assistance。　　Daddy　Jacques　took　pity　on　her　and　accompanied　her
  through　the　oak　grove　out　of　the　pa