Aam Atir Vepu is the second part of Pather Panchali, taking up where the first left off. Apu is older now, Durga is no longer with the family, and the story moves with him out of his childhood village toward what comes next.
If you read Pather Panchali and felt the loss when it ended, this is the book that continues the world. Bibhutibhushan keeps the same patient, attentive voice.