Coffee and food were served to his comrades and himself in the battery, and then they remained by their guns waiting. The night deepened. Harry could yet see the flash of waters and the dim bulk of Sumter, but the flag itself was no longer visible. No sound came from the city. The silence there seemed singular and heavy.
The boy felt the night and the waiting. Even Happy Tom ceased to be light and frivolous. The three had nothing to do and they sat together, always looking toward the sea where the smoke of the relieving fleet might appear. Colonel Leonidas Talbot and Major Hector St. Hilaire passed together on a tour of inspection. They gave approving looks to the three trim youths, with the frank open faces, but said nothing and went on. Harry heard their footsteps for a moment or two, and then the oppressive silence came again.
The same stillness endured for a long time, so long that the three began to believe nothing would happen. Despite himself, Harry began to nod and he was forced to bring himself back to earth with a jerk. Then he stretched a little and peered over the earthwork. It was brighter now. A fine moon rode high, and the sea was dusted with starshine. The bulk of Sumter, black no longer, was coated with silver.
"Looks peaceful enough," whispered Langdon. "The ships have heard that you and St. Clair and I are here waiting for them and have turned back."
Harry made no answer. This waiting in the silence and the night made his blood quiver just a little. He was about to turn back when he saw a sudden flash of fire from another point further up. It was followed by a heavy crash that echoed and re-echoed over the still sea and city. Harry's heart leaped, but his body stiffened to attention. Tom and St. Clair by his side pressed against the earthwork.
"What is it?" they whispered.
"The moonlight is good," replied Harry, "but I don't see any ship. It must be a signal of some kind."
"Hush!" said Langdon, "there it goes again!"
Another cannon thundered, and the echoes, as before, came back from sea and shore, followed, as the echoes died, by that strange, heavy silence. But, straining their eyes to the utmost, the three boys could see nothing on the sea. It swayed gently like a vast mass of molten silver in the starshine, and lapped softly against the shore. The report of a third heavy gun came, and then the reports of several more. After that the silence was complete. It had seemed to Harry, his brain surcharged with excitement, like the tolling of great bells. Langdon and St. Clair whispered together, but he said nothing.
It was permitted to the three to lie down in their blankets in the earthwork and sleep, but they did not think of trying it. They wished to know the meaning of those cannon shots and they waited, tense with excitement. It was nearly midnight when Colonel Leonidas Talbot came.