In SomToday under Vakken / Engels / Leermiddelen, you will find a file with a list of book titles that could be of interest.
Open the file "ENGLISH BOOKS MEDIATHEEK (overzicht niveaus)"
On the next page, you will see some websites you can go to
to get more information about books.
Read a short summary, see what age group is recommended for a specific book, check how many pages it has...