Hour after hour I kept the gun pointed at the other nine men. ①From the lifeboat's stern, where I'd sat most of the twenty days of our drifting, I could keep them all covered. ②If I had to shoot at such close quarters, I wouldn't miss. They realized that. Nobody jumped at me. ③But in the way they all glared I could see how they'd come to hate my guts.   

     Especially Barrett, who'd been bos'n's mate; Barrett said in his harsh, cracked voice, "You're a fool, Snyder. ①Y-you can't hold out forever! You're half asleep now!"  

Especially Barrett是不是省略了，完整的可能是Barrett hates my guts especially.   所以才造成了好像是副词修饰名词的现象。