ten o'clock
We 've cut , and you and I are partners . Besides , Paula 's making her sleep noise . So say good night , and let her go . '' Paula had left for bed at ten o'clock . Not till one did the bridge break up . Dick , his arm about Ernestine in brotherly fashion , said good night to Graham where one of the divided ways led to the watch tower , and continued on with his pretty sister-in-law toward her quarters . `` Just a tip , Ernestine , '' he said at parting , his gray eyes frankly and genially on hers , but his voice sufficiently serious to warn her .