"You turn on the compressed air with a wrench, don't you?" she demanded, swiftly.
"Yes," nodded the submarine boy. Then added, instantly:
"But you're a woman. These risks are not for you. Rush up through the manhole and escape. There may be time."
"Where's the wrench? Tell me quickly," commanded Grace Desmond. "I can turn on the air more quickly than I can set you free to do it."
"Yes," breathed the boy, rapidly, "because I'm manacled, anyway.
But save yourself, Miss Desmond."
"We must both go down if you don't tell me quickly where to find the wrench," cried the girl, stamping her foot with impatience.
Then Jack told her, only when he realized that she would not save herself at his expense. Fortunately, Josh Owen had overlooked securing that wrench and throwing it overboard. In another moment Miss Desmond had the implement.
"The forward compressor, first," Jack directed.
With a quick comprehension that asked only bare details, Miss Desmond fitted the wrench just where it should go.
"A hard turn forward," called Benson.