Harry hears news of an evil old man called Ashkenazy who, not content
with terrorising young conductors with a piano (by which to say he has
the piano, not the young conductor (by which to say he does not have the
young conductor - this is a family book)), seeks to hunt them down and
Higher-E, meanwhile, has a magic artifact which allows her to travel in
time but not, alas, sing in time. She remains one step ahead of
everyone else, which gets tedious after a while.
After some confusing revelations, it turns out that a bad guy had
been handed down through generations of Rowan's family, disguised as
their beloved pet onion. Ashkenazy turns to Harry, black-gloved hand
"I am your God-father".
"Nooooooooo!" said Harry.