nine o'clock
Their camp was located between the rocks and not far from the trail by which they had come to the vicinity . The horses were tethered at a point where a patch of coarse undergrowth gave them something to nibble at . The animals were of no use to them , now they were in the district where the lost mine was supposed to be located . It was a little after nine o'clock when the boys turned in , and a few minutes later the two old miners followed them . So far they had not deemed it necessary to have a guard , for none of their enemies nor wild beasts had come to annoy them . Roger and Phil were soon sound asleep , and it was not long before their snoring told that Abe Blower and Tom Dillon were likewise in the land of dreams . But Dave , for some reason he could not explain , was restless , and he turned over several times , sighing heavily .