midnight
I _ could _ not stay still . My only chance of peace was to work , my only chance of sleep to tire myself out . Unhappily , I am very strong , so even when I came home at dark I was quite fresh . However , I found a cable message from Rooke that the yacht would arrive at midnight . There was no need to summon the mountaineers , as the men in the Castle would be sufficient to make preparations for the yacht 's coming . _ Later _ . The yacht has come .