"What was it?" I demanded.
"A nigger on his all-fours!" swore Braxton. His face was strangely pallid in the moonlight. "He was crouched between them cabins there, watchin' us!"
"It must have been an alligator." What a mystery is the human mind! I was arguing for sanity and logic, I, the blind victim of a compulsion beyond sanity and logic. "A nigger would have to come up for air."
"He swum under the water and come up in the shadder of the bresh where we couldn't see him," maintained Braxton. "Now he'll go warn Saul Stark."
"Never mind!" The pulse was thrumming in my temples again, the roar of foaming waters rising irresistibly in my brain. "I'm going—straight through the swamp. For the last time, go back!"
"No! Sane or mad, I'm goin' with you!"
The pulse of the drum was fitful, growing more distinct as we advanced. We struggled through jungle-thick growth; tangled vines tripped us; our boots sank in scummy mire. We were entering the fringe of the swamp which grew deeper and denser until it culminated in the uninhabitable morass where the Tularoosa flowed into Black River, miles farther to the west.
The moon had not yet set, but the shadows were black under the interlacing branches with their mossy beards. We plunged into the first creek we must cross, one of the many muddy streams flowing into the Tularoosa. The water was only thigh-deep, the moss-clogged bottom fairly firm. My foot felt the edge of a sheer drop, and I warned Braxton: "Look out for a deep hole; keep right behind me."
His answer was unintelligible. He was breathing heavily, crowding close behind me. Just as I reached the sloping bank and pulled myself up by the slimy, projecting roots, the water was violently agitated behind me. Braxton cried out incoherently, and hurled himself up the bank, almost upsetting me. I wheeled, gun in hand, but saw only the black water seething and whirling, after his thrashing rush through it.