Late night
[It's one in the morning. The Tower rumbles along the ground alongside the giant White Chalice. After the last few battles, the two ships are closer together than they normally are for safety, and so any of you night owls may occasionally pick up the sound of someone playing a harmonica when the wind blows in the right direction if you're standing on the deck of the White Chalice. If you look you might make out the figure doing it, although it's too dark to be sure. Investigate?]