CHAPTER XV THE SCARLET SAGELEILA DUANE spoke first. "Who did it?" she asked in a small, shocked voice.
"We don't know yet," replied Mr. Wheeler. "It is a mystery. But the murderer must be found and brought to justice. Had Mr. Arnold any enemies?"
"No," said Campbell Crosby; "and if he had, they couldn't get into this house in the night. Do you know, Mr. Wheeler, how it is locked and barred?"
"Yes. I've heard about it and tried the alarm, and all that. But, Mr. Crosby, we must conclude somebody did force an entrance. Unless we allow ourselves to suspect some member of the household or one of the servants of this dreadful deed."
"Oh, no!" cried Mabel Crane. "That is unthinkable! Someone must have gained entrance from outside, in some way or other."
Mr. Wheeler looked deeply thoughtful.
