midnight
Elaine was glad he could slumber so profoundly . The night was barely cool ; she was not in the least uncomfortable as she sat at Grenville 's side . She knew he would waken at the slightest tug on the cord so quickly contrived to warn of an enemy 's approach , and therefore felt a decided sense of security , despite the living silence of the night . Long before midnight she was tense with nervous apprehension . Sounds from the jungle arose from time to time where some animal prowled for its prey . A whisper came up from the waves that lapped the cliff , and haunted the air as if with spirits . She had steeled her heart , however , and would not weaken by a jot .