Books for very able 10 year old reader

Same here. I would read for hours outside of school and didn’t need reading glasses until my 50s.

My 11yo’s main favourites (excluding yours) have been Jacqueline Wilson, Judy Blume and the Babysitters Club - these are all books I read when I was younger (back when she’d still follow my recommendations!!). She’s also a very fast reader and would consume 400 pages or more per day during lockdown age 7 - very much not caused any short sightedness as her vision is perfect unlike mine.

we get the babysitters club books second hand off music magpie/world of books etc as the new editions are very expensive for a couple of hours reading. They do a lot of collections or specials which are longer so better value!

Katherine Rundell is fantastic.
Second the Eva Ibbotson suggestions.
The 'pinch of magic' series and anything else by Michelle Harrison.
My ten year old has read and re-read these and I'm getting her the Terry Pratchett 'Tiffany Aching' books for Christmas.

Yes to all the classic suggestions, The Works has a box set with most of them! But if you get 'What Katy Did' I suggest also giving her Jacqueline Wilson's modern rewrite 'Katy'... she explains in a foreword why she disagrees with the moral of the original story (be good, find God and you won't be disabled any more!).

I don't think it does, I read voraciously as a child, a book a day (I lived somewhere dull) and only now need glasses in my 50s.

The dark is rising series. It's fantasy but not really.
Ronald Dahl

I’ll vote for the classics, they are a step up from contemporary writing and will set her up for later studies too.

She's the right age for the Chalet School, by Elinor M. Brent-Dyer. Not hugely demanding (but better than Malory Towers/St Clare's, imo) but there are plenty of them, and from the beginning up to the end of the war, there's quite a lot of historical and geographical background to read up on, if that interests her. (I learned all about the Anschluss from reading the Chalet School.)

The series is complete up to No.35 on fadedpage.com

A Murder Most Unladylike series
Lightning Mary
Lottie Brookes series

I think going classic is the answer - the stories are very much aimed at DC (and in a gentler era) but have more complex sentence structure and different (arguably wider) vocabulary. Ones to try:

Treasure Island
The Little White Horse
Children Of The New Forest
Lorna Doone (this was our class reader in yr 5)
Mrs Frisby and the Rats of Nihm
Swiss Family Robinson
What Katy Did
Pollyanna
Pippi Longstocking
Moonfleet
Just So Stories
The Railway Children
Emil and the Detectives
The Phantom Tollbooth
The Little Prince
The Owl Service
The Wizard of Darksea

And don't overlook poetry - I remember reading Hiawatha whilst still at primary. And an anthology on the lines of a "poem a day" should give a wide variety.

Seasonal ideas here, OP:

https://bookadventcalendaruk.wordpress.com/

Roald Dahl.

Another vote for Percy Jackson, my Dd was about 8 when she found the first one and is 13 now and owns every book Rick Riordan has written and happily reads and rereads them.
Terry Pratchett's books are good, there are lots of children's ones and even some of the adult ones are suitable...

By the way need to take care not to read too much. It can lead to short sightedness. Take them to an optician to test eyes. There are lenses that slow down shortsightedness if it starts.

It sounds like she would like Jacqueline Wilson

I was a voracious reader as a child, I hope you're members of the library?

Yes to Holes! (Thanks pp) And the rest of Louis Sachar’s novels!

I’m following for my 8 yr old with a reading age of 13. She recently enjoyed Northern Light series.

E Nesbit can be read on more than one level - some of the humour I only got when reading as an adult.

Judith Kerr - When Hitler Stole Pink Rabbit - semi autobiographical. The next two in the trilogy are not suitable for a 10yo, however; they deal with adult themes as they follow the protagonist 'Anna' through adolescence and adulthood.

Eva Ibbotson wrote some novels aimed at 10-12 yos. Star of Kazan, The Dragonfly Pool, Journey to the River Sea.

I'd also recommend more classics.
Swallows and Amazons
Ballet shoes series
Little Women
Just William

A series of unfortunate events is good. And there's a series of historical fiction called 'my story' that my dd absolutely loved.

Just William, Famous Five, Phillip Pullmans northern lights series, professor Branestawm - books of short funny stories about an eccentric inventor, there are some young James Bond books about his time at boarding school. Would Jaqueline Wilson books be not challenging enough? Ooh the queens nose!

Caroline Lawrence Roman mysteries? I love the classics here, Anne of Green Gables would be amazing, imagine reading it for the first time!! Mine also loved the hobbit by this point too...

Oh, absolutely yes to Anne of Green Gables!

Also The Little House on the Prairie books.

Arthur Ransome.

The problem with very able but young readers is that their understanding doesn't match their reading ability. I had Jane Eyre from the school library when I was about eleven - I think it was recommended because of the section with Jane as a child - but a lot of it was beyond me.

That said, what about the early chapters of Great Expectations, and other Dickens featuring child characters?