In an instant the drowsy interior of G2 wakened into sudden life, and Ken, springing to his feet, moved forward to where Williams was standing near the forward periscope.

All the crew were watching from the rail the distant and insignificant upright periscope.

At the sight of a hostile periscope she used positively to see red, and she once steamed across a mine-field without turning a hatch-cover.

All the crew were watching from the rail the distant and insignificant upright periscope.