Still, the presence of the detectives brought the truth home to him more than anything else could have done. 
The presence of the detective made the truth apparent.
The presence of the maids made the whole thing very serious.
He was a very confident man
The teachers are well-qualified.
There isn't anything understood.
A'deem told Thorn he had plenty of food for him.
The man is at home.
A person is at work.