noon
`` Come , we must be on our way , '' urged Dad . `` We want to make half the distance to the Canyon before night . I reckon the pack train will have gone on . We 'll have to live on what we have in our saddle bags till we catch up with the train , which I reckon we 'll do hard onto noon . '' No great effort was required to descend Sunset Mountain . It was one long slide and roll . The boys screamed with delight as they saw the dignified Professor coasting and taking headers down the cinder-covered mountain .