whew shed got distracted and lost count ; she went backwards , once more using her index finger to count the windows off and adding as she wentseventeen , plus those six in the tower , thats twenty three , plus two times three to either sidethat makes , twenty ninethen she noticed there were more windows on each floor of the end turrets but by now the rain shower that had been threatening for the last quarter of an hour decided to do more than threaten .