Captain Eph looked toward the trap-door as if to make certain neither of his mates were astir, and then, lifting the little lad on his knee, he rocked him to and fro as one would a baby, crooning a bit of an old sea song, until Sidney almost believed the old sailor was crying.

Until day broke, dark and forbidding because of the fog which enveloped the tower until it was impossible to get even a glimpse of the ocean, Captain Eph held the lad on his knee while he spun the wildest and weirdest of sea yarns, and when the time came to extinguish the lights, Sidney detained the old keeper long enough to ask if he might be allowed to stand watch with him while he remained on Carys' Ledge.

"Indeed you may, Sonny, if so be you don't come to believe that it's more comfortable in bed, an' I'll show you how to care for the lens. Sammy shall snooze as long as he likes this mornin', an' we two will put the lantern in proper shape."

Nothing, except an opportunity to see his father, could have given Sidney more pleasure than this permission, and eagerly did he follow Captain Eph up the narrow ladder, wondering not a little why the old man took with him the book of instructions to light-keepers.

"It lacks nigh to ten minutes of sunrise," Captain Eph said as he consulted his watch after they were in the lantern, "an' if it so be you're goin' to stand watch with me, it's time you knew somethin' about the rules. Here's number 123: 'Lights must be lighted punctually at sunset, and must be kept burning at full intensity until sunrise.' Do you get it, Sonny?"

"I should be able to remember that much," Sidney replied with a laugh.

"Then here's rule 124: 'All preparations must be made early, that there may be no delay in lighting.'"

"I can keep that in mind and not half try, Captain Eph."

"Number 125 is longer; but it ain't hard to catch the general idee of it. 'When the light is extinguished in the morning the keeper must hang the lantern curtains and immediately begin to put the apparatus in order for relighting. While doing this the linen aprons provided for the keeper's use must be worn, that the lens may not suffer from contact with the wearing apparel. The illuminating apparatus must be carefully covered before the cleaning is begun.' Now here's Sammy's apron for you, an' this one is mine," Captain Eph said, as he took the articles in question from a locker, and showed Sidney how to put one on. "These 'ere are the lantern curtains which we'll hang up at sunrise."

It was quite like a game, Sidney thought, and he was in high glee by the time Captain Eph was ready to read his rule 126.