"When you entered the room there was only a candle lighted on the table, was there not ?" "Yes, that was so." "By its light you saw that some terrible incident had occurred ?" "Exactly." "You at once rang for help ?" "Yes." "And it arrived very speedily ?" "Within a minute or so." "And yet when they arrived they found that the candle was out and that the lamp had been lighted.

That seems very remarkable." Again Barker showed some signs of indecision.

"I don't see that it was remarkable, Mr.Holmes," he answered after a pause.

"The candle threw a very bad light.

My first thought was to get a better one.