I didn't move. My legs seemed to have grown into the sand like the trunks of trees. The voice spoke again in my mind, louder, more compelling. "Walk! Now! Into the water!" I stood resisting the terrifying power of the voice. The figure up the beach seemed closer, blurred by the cold wind that brought tears to my eyes. I stood rooted and my body bent as if a gale tugged and pulled at it. My legs began to tremble uncontrollably. The command hammered at me with a relentless pressure, filling my mind, blotting out all consciousness save for the drumming words, overwhelming in their brutal strength. And one foot moved. I took a step. Awkwardly, stiffly, like a rusty robot lifting its leg. I struggled to force my body to obey the protest of my own will. No! Stop! Don't move! But the cry of resistance was obliterated by the command that swelled within my brain. "Walk! Walk! Walk!" Feet dragged resisting in the soft sand. Then there was the packed wet surface, dark footprints, and the cold spray against my face, the water swirling around my ankles, receding rapidly away from me down the wet brown slope. I stumbled after it, impelled by the irresistible force, each step a painful conflict that racked my body. I flung a wild glance toward the figure on the beach. Closer now, much closer. Moving in for the kill. And I felt anger, raging helpless anger mixed with the terror. A breaker cracked like a whip ahead of me. The foaming tail of the wave tumbled and crashed around me, washing above my knees. For a single moment, I braked to a stop. I could feel the fabric of my suit plastered wet against my legs. I fought again and lost. Walk. Drown. One step, then another. The water waist-high, dragging against my thighs, a numbing cold. A breaker rising, trembling at its crest, smashing down to drive me off my feet, tumbling me helplessly in the churning violence. "Up! On your feet! Walk!" Eyelids heavy and wet, the salt taste on my tongue. The cold, bone deep. Staggering, half falling, dragging myself forward against the pull of the water. Another breaker, and I fell face forward into it. My whole body was numb and wet and shivering, and the chill penetrated my brain where the voice pounded at me with its relentless power, shattering my will, dominating me as if I were a simple-minded child, driving me onward step by step. Another wave