"drade started , his head bouncing off the wooden panelling to the side of his chair as though it had received a bolt of electricity . he must have nodded off . something he found often happened during periods of intense concentration . barney was leaning over him and belter was staring fixedly at him from across the coffee table . ' nigel has just been in and asked if you wanted a light supper -- it 's fish tonight , straight from billingsgate ' ' i 've got it , ' said _ ..." What is the word in the blank space (_)? The answer is
drade