That's one of a number of important lessons I learned from reading The Girl Who Kicked the Hornet's Nest, the third in Stieg Larsson's trilogy of potboilers. Potboilers are important to publish in Sweden because apparently it gets quite cold there.
Those of you who have read my personal book review blog know that I was not crazy about the second book in this series, which was a testament to the importance of good editors. The first hundred pages had absolutely no relevance to the rest of the book. They should have been cut. Or better yet, put into a separate novella about "Salander's lost months" so that the publisher could rake in a kajillion more kronor. But where was the editor? AWOL.
Thankfully, the third book is much better, even though the injured Lisbeth Salander doesn't really get her mojo back until nearly halfway through the novel. . . .