I could use a little creativity help here. I literally start my novel with a BANG! My main character is chilling on the couch when a large explosion comes from somewhere outside, something like an M-80 firework going off, which intrudes on his lazy Saturday. I'm looking for a more creative way to express the suddenness, the loudness, and the lack of echo, reverberation, etc. The noise is not multisyllabic, like ka-boom or carump. If you've ever heard an M-80, you know that it is just one loud, startling burst, like whopping a phonebook on a granite countertop, or a balloon popping, but a whole lot louder. Does anyone have a suggestion, or will the first line just have to be... BANG!