But that's not what caught my eye! I offer for your consideration page 151:
"You'd have been captain of Second Netball this year, wouldn't you? I wonder who they -- gosh! Tonks will be it, I suppose." ... (S)he sped away to break the glad news to Tonks Tonkinson...And then p 153:
There was nothing unusual about a girl of nearly fifteen starting regular work... Joan Lupin (was) already earning good money at the button factory...
Tonks AND Lupin?? In the space of two pages? Coincidence? Or -- is it witchcraft?