You climb the ladder, even though you are rather afraid of how unstable it looks. You cling to the sides and make sure that your feet are secure on every rung before you take another step.
You continue climbing until you reach the second floor, where the ladder breaks beside the window to your friend’s bedroom. You are tempted to carry on climbing, even though the gap looks a bit risky; you are tempted to explore the third floor that your friend is always so secretive about, but you don’t want to betray her either.
She’s typing at her computer, most likely on Protagonize, and, as you notice the speed in which her hands are jumping all over the keys, you realise that she hasn’t seen you and that, even as you block out her light by casting a lithe shadow, she won’t notice you anytime soon.