He, with the rest of the boys fully believed that the girls were planning some trick for that night.
Larry watched that anchor light until just before the break of day, when he called Sam to come out and take the watch until breakfast time.

The daylight had not yet become pronounced enough to make out objects distinctly, but shortly after Sam took the watch the day broke bright and clear.

The anchor light seemed to fade away and merge into thin air before his very eyes.

He did not stop to reason that this was because the morning light had become stronger than that of the lantern.
Sam blinked and rubbed his eyes.

He could hardly believe what they told him.