In 1805 she published _Hints towards forming the Character of a Young Princess_. It was undertaken, at the request of a bishop, with reference to the education of the Princess Charlotte.
In 1809 her religious novel, _Coelebs in Search of a Wife_, issued anonymously, roused universal attention. In twelve months as many editions came out; and during the author's lifetime thirty editions of a thousand copies each were printed in America. This was followed shortly by _Practical Piety_, which soon ran to the tenth edition, and which brought the author to the end of her life numerous gratifying testimonies of its results. As a sequel to this work, _Christian Morals_ was published in 1812, and was also widely circulated. Three years later, when the author had entered her seventieth year, she wrote an _Essay on the Character and Writings of St. Paul_, in two volumes, which, notwithstanding absorbing political events, was received with the same eagerness which greeted her former works. _Moral Sketches of Prevailing Opinions and Manners, Foreign and Domestic_, was published in 1819, being chiefly directed against the rage for copying French customs and manners. At the age of eighty-two she collected from her later works her _Thoughts on Prayer_ and re-issued them in a little volume, with a short preface. This was her last literary effort. She said to a friend that the only remarkable thing which belonged to her as an author was that she had written eleven volumes after the age of sixty.
Between 1813 and 1818 her four sisters died. The last to go was Martha, Hannah's trusty helpmeet and lieutenant in all her benevolent schemes, and her tender consoler in many a season of sickness. Soon after this event Miss More's long illness of seven years occurred. Unable to give proper supervision to her servants, she was victimised in household matters in various ways. Extravagance and misconduct at length gave rise to scandal; and at the representation of friends Miss More reluctantly decided to break up her establishment, and remove to another and smaller residence at Clifton. It was with a sad heart that she left her charming dwelling; and as she glanced back into the beautiful garden, with its shady bowers, she exclaimed, "I am driven, like Eve, out of Paradise; but not, like Eve, by angels."