The Story of the Treasure Seekers: Complete and Unabridged (paperback) E. Nesbit
When their mother dies and their father's business partner runs off with most of their money, the six intrepid Bastable children are determined to restore their family's fallen fortunes. These resourceful children squabble, make up, and have many memorable adventures, from publishing their own newspaper to foiling a pair of real bandits and even becoming kidnappers themselves. But while the efforts of the Bastables are often ingenious, their good intentions always go hilariously awry. This lively, funny story perfectly captures these children's remarkable bravery and deep sense of honor.