from previous--

johny  in the  beginning  does  to  believe  it  , how  easy  it  all seemed, there  must  be  some  hitch, he  might  be  caught  or  peter  could  run away  with  all the  stolen gems, explained  peter  the  open window  on the  higher  floor  is  safe  from intruders  but  gems thrown in the  tank  would  pass him clean in ex rays, both later  would   dive  in and  find  the  diamonds  together  at  night  and  divide  them