Books and series for 9 year old DD

[CaptainChannel]

DD is almost 9, she's a massive reader. She's just about to come to the end of the Roman Mysteries series and has really enjoyed it. Other things she's loved over the last couple of years are everything by Roald Dahl & David Walliams, Famous 5/Malory Towers/St Clare's by Enid Blyton, Helen Moss Adventure Island Series , Lauren St. John Mysteries, Harry Potter series.
Anything else anyone can recommend based on the eclectic list above?

Second series of unfortunate events. I remember my oldest son reading the Darren Shan books a few years ago and the last few were really enjoyable.

Nanny piggins.

My daughter obsessed with warrior cats and the survivor series both by Erin Hunter