The Sentinels only got $20 in my pocket

Up until today Sarah hadn't had many reasons to use her brain for thinking and now, when she finally began to spin the wheels, the mechanism was working quite slowly. So busy she was staring into the sun, dazzled by it's light, while her thinking cells were trying to find an answer for the question that she did not notice her brother sneaking up on her and attacking from behind. 

And, if there was another thing besides being left alone, that Sarah disliked was this kind of sudden interuption of an activity she had chosen to do. She fell to the ground and growled at Terance, who - by now - was probably somewhere above her. How dare you!!!!!