are on offer at WH Smith at £13.99 for the set of 10.
I know what you are thinking - surely there were only three or four. Well EB only wrote three (or four, I am not totally sure about the provenance of the fourth) but Anne Digby (Trebizon author) carried on and wrote another six. DD2 bought them with a birthday voucher yesterday and she and DD1 have been sprawled on their beds all day working their way through them.
Just thought people might like to know, especially those looking for good read along books for 5-8 year old fluent readers, as there seem to have been a good many threads like this recently.