In this fascinating adventure story by an Irish writer, the reader will meet two heroes from distant Ireland - a boy named Finn and his little sister Derval. Their fate depends entirely on the will of their selfish guardians - their English stepfather and American uncle. But the author hopes that after reading the book to the end, the reader will appreciate the courage and determination of the guys in the unequal struggle for their rights and freedom and will be glad that on their way they met kind and selfless friends whom he will love as passionately as Finn and Derval themselves.