eleven o'clock
`` I 'm glad I did n't tell you , then . But promise me this , Harry : that , whatever happens , you 'll hold your tongue . '' `` I will , Ben . '' `` And if Nason do n't get you off , be here at eleven o'clock . Put on your best clothes , and take everything you want with you . '' `` Going to run away ? '' `` I did n't say so . ''