How to install APK / APKS / OBB file on Android
Read "Twelve Years a Slave
Narrative of Solomon Northup, a Citizen of New-York, Kidnapped in Washington City in 1841, and Rescued in 1853, from a Cotton Plantation near the Red River in Louisiana" by Solomon Northup!
Once you install this app, you can read it by 1-click without connecting network.
You can also check your "Reading Score" from the menu.