eight o'clock
It was written in what was evidently a disguised hand , on common note-paper , and ran : -- `` TO MR. WETHERELL , `` POTTS POINT , SYDNEY `` DEAR SIR , `` This is to inform you that your daughter is in very safe keeping . If you wish to find her you had better be quick about it . What 's more , you had better give up consulting the police , and such like , in the hope of getting hold of her . The only way you _ can _ get her will be to act as follows : At eight o'clock to-night charter a boat and pull down the harbour as far as Shark Point . When you get there , light your pipe three times , and some one in a boat near by will do the same . Be sure to bring with you the sum of _ one hundred thousand pounds in gold , and -- this is most important -- bring with you the little stick you got from China Pete , or do not come at all _ . Above all , do not bring more than one man .