Number of pages: 350
The fourth book in Arthur Ransome's Swallows and Amazons series feels different for two different reasons.
First off, it takes place during the winter, instead of the summer as with the previous three books. Secondly, it opens by introducing two new characters, Dorothea and Dick, from whose point of view much of the story (certainly the early chapters) seems to be told from the point of view of, as they witness all six of the original main characters arriving by boat. Almost immediately, Dorothea and Dick become part of the core group.
The plot of this story involves the characters getting ready for an "Arctic expedition", where they are going to imagine that they are trekking to the North Pole, with the exception of Nancy, who is sick with mumps. Most of the plot involves the children skating, and pretending Captain Flint's boat is an igloo while it is frozen in the ice.
I quite enjoyed this story, especially when the main characters finally set off on their expedition, which took place in a blizzard; I liked the characterisation of the children in the book, which still felt true to the original, and I hope to see Dorothea and Dick reappear in later titles in this series.
Next book: To Kill a Mockingbird (Harper Lee)