eddie hissed impatiently through his teeth , angry at the distraction , but roland 's eyes did n't flinch and so he drew a deep breath and tried to clear everything from his mind : the squeaks and squalls of equipment that had been running too long , the aches and pains in his body , the knowledge that susannah was here , propped up on the heels of her hands , watching , the further knowledge that she was closest to the ground , and if he missed one of the gadgets out there , she would be the handiest target if it decided to retaliate. ``