Alva And Irva

Alva and Irva are indentical twin sisters who live in the city of Entralla. Entralla is not a place you are likely to have visited. Alva longs to travel the world. Irva is a recluse, for whom a step outside the house is an ordeal. It is only when Irva finally refuses to leave the house at all that the major work of their lives begins.