About four o'clock
-LSB- Illustration : `` Look here ! here are hands , men 's hands . '' -RSB- It was a weary march that day ; a general feeling of depression spread involuntarily from one to another ; hardly conscious to herself of her weariness , Mrs. Weldon was exhibiting manifest symptoms of lassitude ; and it was only Dick 's moral energy and sense of duty that kept him from succumbing to the prevailing dejection . About four o'clock , Tom noticed something lying in the grass , and stooping down he picked up a kind of knife ; it was of peculiar shape , being very wide and flat in the blade , while its handle , which was of ivory , was ornamented with a good deal of clumsy carving . He carried it at once to Dick , who , when he had scrutinized it , held it up to Harris , with the remark , -- `` There must be natives not far off . '' `` Quite right , my young friend ; the hacienda must be a very few miles away , -- but yet , but yet ... '' He hesitated . `` You do n't mean that you are not sure of your way , '' said Dick sharply .