My 9 yr old DD likes series books....any ideas?

Lauren St John's 'Laura Marlin' mysteries are brilliant. I love the way Laura is written-a strong, intelligent girl.....1st one is 'Dead man's cove' and set in St. Ives. I gave it to Year 4 as a gift when I left my headship and they had to make their next teacher (in Year 5) promise she would read them the next installment!
Warrior Cats seem to have many series to them, by Erin Hunter.
'The Mysterious Benedict society' by Trenton Lee Stewart is really unusual-great if you like mysteries and different to Secret Seven etc.
Take a look at www.storyshack.org as i try and put recommendations on there and also love it when people recommend too :-)

jaqueline wilson's victorian series:
Hetty Feather
Sapphire Battersea
Emerald Star
Diamond

jane lawes Gym Stars series.

My daughter sounds similar, she's just turned 10 and she enjoyed Enid Blyton books and The Penderwicks.

Other successful series:
Harry Potter
Emily Windsnap
The Tales of the Frog Princess
Ruby Redfort
Pippi Longstocking
My naughty little sister (maybe a bit young now)
Killer Cat
A series of unfortunate events
The Inkheart trilogy
Scream Street
Diary of a Wimpy Kid

She was looking at the Olivia series by Lyn Gardner the other day, about a girl who goes to stage school, want to have a closer look before I buy any though.

Another series that's really good is the Emily series by L M Montgomery (Anne of Green Gables). There are three books, Emily of New Moon, Emily Climbs and Emily's Quest.

My eldest just turned ten and is reading the Ally's World Series quicker than I can buy them!!

Liz Kessler has 2 series. My daughter really loves the Emily Windsnap series and we'll move on to the Phillipa Fisher series.

On the run series for something modern.

Trebizon for boarding school books with a more modern feel. By Anne Digby.

The Demon Headmaster by Gillian Cross

His dark materials by Pullman or the Tiffany Aching books by Pratchett.

I got the first in the Redwall series by Brian Jacques for my ninth birthday and loved it. Lots to go at there.

Lemony Snicket, definitely. DDs devoured them at around that age.

And The Spiderwick Chronicles.

Jux I've only just discovered the Lady Grace mystery books in my library and I love them as Tudor history is a passion of mine and I'm 38 (rather old fashioned tho, with lots of odd words which we don't use these days)

2nd the Noel Streatfield books - I have read them all to DD over the years as they are falling to pieces where my 3 dsis and I reread them over and over. DD loved the Gemma series and white boots but we both found Ballet shoes hard going as lots of ballet dialogue neither of us understood (and my dmum was a professional Ballet dancer so I actually grew up with lots of the lingo). She also loved Thursday's child by Noel Streatfield too.

Little house on the Prairie books were great too altho again lots of dialogue about gun cleaning and butter making which I skipped a lot of as again I read them to DD as they too were falling to pieces. She especially loved Farmer Boy which was about Laura I W husband as a boy.

Another vote for Anne of Green Gables.
What about the Little House books?
If you can find them, she might enjoy the Chalet School if she liked Mallory Towers and St Clares.
Noel Streatfield has some great books. There's one series that I can think of, the "Gemma" books. There are 4 of them. There are also the "shoes" books which aren't a series as such but follow similar themes. There's Ballet Shoes, Tennis Shoes, White Boots (known as skating shoes in America I think)

39 clues - dd has only read the first one, but there are lots more - guessing they're aiming for 39.

Lady Grace Mysteries, by Grace Cavendish (Elizabethan)

Another one for the Lemony Snicket series. The whole family absolutely loved them, I highly recommend them.

Try Anne Mcaffrey

Warrior cats.

Series after series. Dd adores them.

Lemony Snicket
Diary of a wimpy kid

Lots of books in both those series which would keep your DC going for some time

Anne of Green Gables
Wolf Brother and following books ( but watch out for chapter one, it's scary)

I loved the 'What Katy Did' books when I was that age.

For something contemporary mine has just read the Daisy Star series by Cathy Cassidy. She has loved them. We have all my old Blyton books etc but as a Jacquline Wilson fan and former Rainbow Magic addict she likes try new books. The older series Chocolate box girls is lovely I read it! As there are so many books to explore I felt she could wait to read these till she is closer in age to the 12/13 yr olds in the story.

Isabel Allende,
about some awesome kids who go on amazing adventures with the coolest granny in the universe. Particularly good if your looking to push the strong female characters angle

Walter moers,

Not strictly a series but all interconnected, really proper kid fiction, they are enormous books but with big spacing and bus letters and fantastic author drawn illustration throughout. Good for expanding a good vocabulary (a dictionary will be required for some words as they are so obscure) and also for the feeling if achievement if have read such a huuuuuge book.