This is an automatically translated description

Pollyanna's fame has now spread far beyond Beldingsville, and the "game of joy" is being heard in Boston. The girl is invited there to "heal" the soul of a grieving widow, Mrs. Carey. This time Pollyanna succeeds in the impossible! Thanks to the joyful girl, the grieving woman becomes happy and finds her long-lost nephew. Who will this young man turn out to be and what awaits the main character when she grows up?

Adapted translation.