The Story of the Treasure — Edith Nesbit / E. Nesbit

Six siblings rally to restore their widowed father's fortune in this “breakthrough children's book” (J. K. Rowling).
 
The Bastable children -- Dora, Oswald, Dicky, Alice, Noel, and Horace Octavius -- aren't going to let their family's trials and tribulations get them down. Banding together -- with occasional breaks for fierce arguments -- they're determined to strike it rich to make up for their father's recent business losses. How hard could that possibly be?
 
Funny and heartwarming, The Story of the Treasure Seekers has been a favorite for generations, inspiring two sequels starring the adventurous and mischievous Bastable siblings
 
“The children's writer with whom I most identify . . . Oswald is such a very real narrator.” -- J. K. Rowling