That is very interesting, very interesting," murmured Poirot softly. 
Poirot said in a quiet voice that it was interesting
Poirot shouted that it wasn't interesting at all
No essays on the study
The woman is alone at a diner.
Fish looks at his ideas as inconsequential musings.
An elderly asian male in an unclean shirt is sitting down to rest his arm.
The woman on the altar was injured.
Staying longer in larger parks is more worth it, money-wise.