The boy came running into my room on the night of the tragedy and almost pulled me out of bed, saying that a member of the Black Bear Patrol was in trouble." "What do you want to know about the building ?" "I was wondering if Jim Scoby, the night watchman, was permitted to carry a key to the Cameron suite.

Jimmie does not know whether he was or not, and I thought you might have heard Fremont talking about matters there." "I presume Fremont can tell you all about that.

Suppose Scoby did have a key?
What of it?
Fremont says Mr.Cameron locked himself in that night, or was to do so, and that shows that the man who did the job did not need a key.

He must have been admitted by Mr.Cameron." "There were strange doings in that suite that night," Nestor said, almost as if talking to himself.

"I can't quite get the hang of it," he added, taking a flat steel key from his pocket, and holding it up for the inspection of the other.
Shaw took the key and held it up in the moonlight, examining every detail of it.
"That is a key to the suite," he said.