"I doubt if we shall catch her." "We MUST catch her!" cried Holmes, between his teeth.

"Heap it on, stokers! Make her do all she can! If we burn the boat we must have them!" We were fairly after her now.

The furnaces roared, and the powerful engines whizzed and clanked, like a great metallic heart.

Her sharp, steep prow cut through the river-water and sent two rolling waves to right and to left of us.

With every throb of the engines we sprang and quivered like a living thing.