第 20 节
作者:天马行空      更新:2022-08-21 16:32      字数:9322
  is   retarded   under   certain   conditions;   none   of   which;   however;   appear   to
  have been present in this case。          I presume Mrs。 Inglethorp took the coffee
  after dinner about eight o'clock; whereas the symptoms did not manifest
  themselves until the early hours of the morning; which; on the face of it;
  points to the drug having been taken much later in the evening。〃
  〃Mrs。   Inglethorp   was   in   the   habit   of   drinking   a   cup   of   coco   in   the
  middle   of   the   night。    Could   the   strychnine   have   been   administered   in
  that?〃
  〃No; I myself took a sample of the coco remaining in the saucepan and
  had it analysed。       There was no strychnine present。〃
  I heard Poirot chuckle softly beside me。
  〃How did you know?〃 I whispered。
  〃Listen。〃
  〃I   should   say〃the   doctor   was   continuing〃that   I   would   have   been
  considerably surprised at any other result。〃
  〃Why?〃
  〃Simply  because   strychnine   has   an   unusually   bitter   taste。       It   can   be
  detected in a solution of 1 in 70;000; and can only be disguised by some
  strongly   flavoured   substance。        Coco   would   be   quite   powerless   to   mask
  it。〃
  One   of   the   jury   wanted   to   know   if   the   same   objection   applied     to
  coffee。
  〃No。     Coffee has a bitter taste of its own which would probably cover
  the taste of strychnine。〃
  〃Then   you   consider   it   more   likely  that the drug   was   administered   in
  the coffee; but that for some unknown reason its action was delayed。〃
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  〃Yes; but; the cup being completely smashed; there is no possibility of
  analyzing its contents。〃
  This concluded Dr。 Bauerstein's evidence。               Dr。 Wilkins corroborated
  it on all points。     Sounded as to the possibility of suicide; he repudiated it
  utterly。    The deceased; he said; suffered from a weak heart; but otherwise
  enjoyed      perfect    health;   and    was    of   a   cheerful    and    well…balanced
  disposition。     She would be one of the last people to take her own life。
  Lawrence       Cavendish      was   next    called。    His    evidence     was    quite
  unimportant; being a mere repetition of that of his brother。              Just as he was
  about to step down; he paused; and said rather hesitatingly:
  〃I should like to make a suggestion if I may?〃
  He glanced deprecatingly at the Coroner; who replied briskly:
  〃Certainly;   Mr。   Cavendish;   we   are   here   to   arrive   at   the   truth   of   this
  matter; and welcome anything that may lead to further elucidation。〃
  〃It is just an idea of mine;〃 explained Lawrence。             〃Of course I may be
  quite   wrong;   but   it   still   seems   to   me   that   my   mother's   death   might   be
  accounted for by natural means。〃
  〃How do you make that out; Mr。 Cavendish?〃
  〃My mother; at the time of her death; and for some time before it; was
  taking a tonic containing strychnine。〃
  〃Ah!〃 said the Coroner。
  The jury looked up; interested。
  〃I believe;〃 continued Lawrence; 〃that there have been cases where the
  cumulative   effect   of   a   drug;   administered   for   some   time;   has   ended   by
  causing     death。    Also;    is  it  not  possible   that   she  may    have    taken   an
  overdose of her medicine by accident?〃
  〃This is the first we have heard of the deceased taking strychnine at the
  time of her death。       We are much obliged to you; Mr。 Cavendish。〃
  Dr。 Wilkins was recalled and ridiculed the idea。
  〃What      Mr。   Cavendish     suggests     is  quite  impossible。      Any     doctor
  would tell you the same。          Strychnine is; in a certain sense; a cumulative
  poison; but it would be quite impossible for it to result in sudden death in
  this   way。    There   would   have   to   be   a   long   period   of   chronic   symptoms
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  which   would   at   once   have   attracted   my   attention。     The   whole   thing   is
  absurd。〃
  〃And      the   second     suggestion?      That   Mrs。     Inglethorp     may    have
  inadvertently taken an overdose?〃
  〃Three; or   even four   doses; would not have   resulted in death。              Mrs。
  Inglethorp   always   had   an   extra   large   amount   of   medicine   made   up   at   a
  time;   as   she   dealt   with   Coot's;   the   Cash   Chemists   in   Tadminster。   She
  would   have   had   to   take   very   nearly   the   whole   bottle   to   account   for   the
  amount of strychnine found at the post…mortem。〃
  〃Then you consider that we may dismiss the tonic as not being in any
  way instrumental in causing her death?〃
  〃Certainly。     The supposition is ridiculous。〃
  The same juryman who had interrupted before here suggested that the
  chemist who made up the medicine might have committed an error。
  〃That; of course; is always possible;〃 replied the doctor。
  But   Dorcas;     who   was    the  next   witness    called;  dispelled    even   that
  possibility。     The     medicine     had   not   been    newly    made     up。   On     the
  contrary; Mrs。 Inglethorp had taken the last dose on the day of her death。
  So the question of the tonic was finally abandoned; and the Coroner
  proceeded with his task。         Having elicited from Dorcas how she had been
  awakened        by   the   violent    ringing    of   her   mistress's    bell;   and   had
  subsequently roused the household; he passed to the subject of the quarrel
  on the preceding afternoon。
  Dorcas's evidence on this point was substantially what Poirot and I had
  already heard; so I will not repeat it here。
  The next witness was Mary Cavendish。                She stood very upright; and
  spoke   in   a   low;   clear;   and   perfectly   composed   voice。   In   answer   to   the
  Coroner's question;  she  told how;  her  alarm  clock   having   aroused   her  at
  4。30   as   usual;   she   was   dressing;   when   she   was   startled   by   the   sound   of
  something heavy falling。
  〃That would have been the table by the bed?〃 commented the Coroner。
  〃I opened my door;〃 continued Mary; 〃and listened。                In a few minutes
  a bell rang violently。       Dorcas came running down and woke my husband;
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  and we all went to my mother…in…law's room; but it was locked〃
  The Coroner interrupted her。
  〃I really do not think we need trouble you further on that point。                 We
  know all that can be known of the subsequent happenings。                    But I should
  be obliged if   you would tell us   all you overheard   of the   quarrel the day
  before。〃
  〃I?〃
  There   was   a   faint   insolence   in   her   voice。 She   raised   her   hand   and
  adjusted the ruffle of lace at her neck; turning her head a little as she did so。
  And   quite   spontaneously   the   thought   flashed   across   my   mind:   〃She   is
  gaining time!〃
  〃Yes。    I   understand;〃   continued   the   Coroner   deliberately;   〃that   you
  were   sitting   reading   on   the   bench   just   outside   the   long   window   of   the
  boudoir。     That is so; is it not?〃
  This was news to me and glancing sideways at Poirot; I fancied that it
  was news to him as well。
  There was the faintest pause; the mere hesitation of a moment; before
  she answered:
  〃Yes; that is so。〃
  〃And the boudoir window was open; was it not?〃
  Surely her face grew a little paler as she answered:
  〃Yes。〃
  〃Then you cannot have failed to hear the voices inside; especially as
  they were raised in anger。        In fact; they would be more audible where you
  were than in the hall。〃
  〃Possibly。〃
  〃Will you repeat to us what you overheard of the quarrel?〃
  〃I really do not remember hearing anything。〃
  〃Do you mean to say you did not hear voices?〃
  〃Oh; yes; I heard the voices; but I did not hear what they said。〃 A faint
  spot of colour came into her cheek。            〃I am not in the habit of listening to
  private conversations。〃
  The Coroner persisted。
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  〃And you remember nothing at all? *NOTHING; Mrs。 Cavendish? Not
  one   stray   word   or   phrase   to   make   you   realize   that   it   *WAS   a   private
  conve