‘All ready, sir.’

‘Group down?’[1]

‘Grouped down, sir.’

‘Let go fore and aft,’ cried Raymond to the waiting men on the superstructure.

‘All gone, sir.’

At the fore part of the conning-tower a small pedestal rose containing the magnetic compass and steering gear and a number of small switches.

Raymond pressed two of these and a hooter or ‘Klaxon Horn’ sounded below, a bell rang, and the twin screws began to revolve.

‘Astern both it is. Helm amidships.’

‘’Midships, sir,’ from the coxswain.

‘Keep a look out aft, Boyd,’ said Raymond, turning to the navigator.