Read "The Adventures of Tom Sawyer, Complete" by Twain, Mark for free. A classic public domain work covering adventure stories, bildungsromans, boys -- fiction. Available in full text from Project Gutenberg.
Adventure stories
Bildungsromans
Boys -- Fiction
Child witnesses -- Fiction
Humorous stories
Male friendship -- Fiction
Mississippi River Valley -- Fiction
Missouri -- Fiction
Runaway children -- Fiction
Sawyer, Tom (Fictitious character) -- Fiction
This book is in the public domain. Free to read and download from Project Gutenberg.