So, I've listened to
The Treasure Seekers,
The New Treasure Seekers and
The Woodbegoods, all by E. Nesbit. They are a trilogy of sorts, it seems (listed in order). The first book was remarkably like
The Railway Children, by the same author. I liked
The Railway Children more, but it is a standalone and if you combine the two books following
The Treasure Seekers, I think the value is quite increased.
All the books I've mentioned in this post are essentially about a group of kids who have all kinds of adventures and scrapes. There's no fantasy here. It's all plain fiction.
The Railway Children is probably more sentimental and has more sad parts.
Anyway, the whole treasure-seeking business is to help their father who had lost his riches to gain them again. The kids try all sorts of things to make money.
The Wouldbegoods, however, is not about treasure-seeking, but about the adventures of the same kids in their attempts to be good (which get them into trouble as often as their treasure-seeking did).
The kids don't noticeably age much throughout the books, and so their characters remain remarkably similar to as they did in the beginning, although I assume they are at least a year or two older in the third book.
The first book is quite short. The second has an equal number of chapters, but all the chapters are longer. The third has an extra chapter and the chapters are longer.
