up in the tree Reg was trying to talk to two littel birds.
wake up professor,said harry . i have all the things you wanted. oh,yes,good, said professor brainy.i was not asleep, i was listening to my computer.'he stood up.
i see you have made the machine.Good.'
Harry was carrying something with wheels on it. Those are *pulleys,said the professor. have you got the rope? ' the rope was on the bike , tied round the ladder.