three o'clock
He decided that it would not be safe to anticipate the letter by a cablegram . It was not likely that any message he could send would have the desired effect . Instead of reassuring her , in all probability it would create fresh alarm . Sleep did not come to him until after three o'clock . At two he got up and deliberately added a postscript to the letter he had written . It was in the nature of a poignant plea for Sara Wrandall . Even as he penned the lines , he shuddered at the thought of what she had planned to do to Hetty Castleton .