‘there,’ she said. ‘that’s another s’prise-secret. when you draw a hissy-snake by the door of your little back-cave where you mend the spears, i’ll know you’re thinking hard; and i’ll come in most mousy-quiet. and if you draw it on a tree by the river when you are fishing, i’ll know you want me to walk most most mousy-quiet, so as not to shake the banks.’