Spring arrives. The March girls decide to vote
Laurie into the P.C. (The Pickwick Club), their secret society and newsletter-writing club that features articles, stories, and poetry by the girls (all written under the guise of characters from Charles Dickens’
The Pickwick Papers). Laurie institutes a P.O. (Post Office) between the March and Laurence houses – he converts an old birdhouse in the hedge between their yards into a mailbox.