As we drew bridle in a whirlwind of sand the guard came tumbling out at the post's loud bawling, and the officer of the guard followed, sauntering up to our hard-breathing horses and peering up into our faces.
"Enderly!" I exclaimed.
"Well, what the devil, Carus--" he began, then bit his words in two and bowed to the masked lady, perplexed eyes traveling from her to me and back again. When I held out the pass for his inspection, he took it, scrutinizing it gravely, nodded, and strolled back to the mill.
"Hurry, Enderly!" I called after him.
He struck a smarter gait, but to me it seemed a year ere he reappeared with a pass viséed, and handed it to me.
"Have a care," he said; "the country beyond swarms with cowboys and skinners, and the rebel horse ride everywhere unchecked. They've an outpost at Valentine's, and riflemen along the Bronx----"
At that instant a far sound came to my ears, distant still on the road behind us. It was the galloping of horses. Elsin Grey leaped from her saddle, lifting her mask and smiling sweetly down at Captain Enderly.
"It's a sharp run to Gretna Green," she said. "If you can detain the gentleman who follows us we will not forget the service, Captain Enderly!"
"By Heaven!" he exclaimed, his perplexed face clearing into grinning comprehension. And to the sentries: "Fall back there, lads! Free way for'ard!" he cried. "Now, Carus! Madam, your most obedient!"
The steady thud of galloping horses sounded nearer behind us. I turned, expecting to see the horsemen, but they were still screened by the hill.
"Luck to you!" muttered Enderly, as we swung into a canter, our horses' hoofs drumming thunder on the quivering planks that jumped beneath us as we spurred to a gallop. Ah! They were shouting now, behind us! They, too, had heard the echoing tattoo we beat across the bridge.
"Pray God that young man holds them!" she whispered, pale face turned. "There they are! They spy us now! They are riding at the bridge! Mercy on us! the soldiers have a horse by the bit, forcing him back. They have stopped Mr. Butler. Now, Carus!"
Into the sand once more we plunged, riding at a sheer run through the semidarkness of the forest that closed in everywhere; on, on, the wind whistling in our teeth, her hair blowing, and her gilt-laced hat flying from the silken cord that held it to her shoulder. How grandly her black mare bore her--the slight, pale-faced figure sitting the saddle with such perfect grace and poise!
The road swung to the east, ascending in long spirals. Then through the trees I caught the glimmer of water--the Bronx River--and beyond I saw a stubble-field all rosy in the first rays of the rising sun.