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peter  wood leaves  a  letter  in sealed envelop  which  is  read  out  after  his  death  , when he  was  young  he  buys  a  stone  toad  for  half  a  crown  from a  antique  shop  from an  old  man  one  winter  evening  strolling  homewards  from his  office, in london his  father  suddenly  becomes  very  ill  and  he  goes  out  of  london , to  arrange  finaces  and  see  what  could  he  do  more  to  help  the  family