Complex sentence: By the time they came back to their homes in the slum, they dropped their characters and one that had pretend to be blind or crippled the whole day could see or walk again once back in the slum.
Split into simpler sentences: By the time they came back to their homes in the slum, they dropped their characters. A beggar who had pretended to be blind or crippled the whole day could see or walk again once back in the slum.