"But I know who I think killed him!" "Who, then ?" demanded Tallington.
"The man who killed Bert Stoner," said Cotherstone firmly.

"And for the same reason." "And this man is----" Tallington left the question unfinished.

For Cotherstone's alert face took a new and determined expression, and he raised himself a little in his chair and brought his lifted hand down heavily on the desk at his side.
"Mallalieu!" he exclaimed.

"Mallalieu! I believe he killed Kitely.

I suspicioned it from the first, and I came certain of it on Sunday night.
Why?
_Because I saw Mallalieu fell Stoner!_" There was a dead silence in the room for a long, painful minute.
Tallington broke it at last by repeating Cotherstone's last words.
"You saw Mallalieu fell Stoner?
Yourself ?" "With these eyes! Look here!" exclaimed Cotherstone, again bringing his hand down heavily on the desk.