At first, on her return home, she spoke of her travelling days as over, and represented herself, at the age of fifty-one, as desirous only of peace and repose. But her love of action, her craving after new scenes, her thirst for knowledge could not long be repressed; and as she felt herself still strong and healthy, with energies as potent as ever, she resolved on a second circuit of the globe. Her funds having been augmented by a grant of 1,500 florins from the Austrian Government, she quitted Vienna on the 18th of March, 1851, proceeded to London, and thence to Cape Town, where she arrived on the 11th of August. Her original intention was to penetrate the African interior as far as Lake Ngami; but eventually she resolved on exploring the Eastern Archipelago. At Sarawak, the British settlement in Borneo, she received a warm welcome from Rajah Sir James Brooke, a man of heroic temper and unusual capacities for command and organization. As soon as she could complete the necessary preparations, she boldly plunged into the very heart of the island--a region almost unknown to Europeans. This was the most daring enterprise of her life, and of itself stamps her as no ordinary woman--as, in truth, a woman of scarcely less heroic temper than the boldest adventurers of the other sex. To endure the pains and perils of such a journey she must have had, not only a remarkable physical energy, but a scarcely less remarkable energy of mind. Night after night she passed in the depths of the vast Bornean forest, a little rice her only food--journeying all day through thickets, which lacerated her feet; swimming brooks and rivers too deep to be forded; recoiling before no form of danger, however unexpected; and astonishing the very savages by her daring and endurance. She equipped herself in a costume of her own devising, well adapted for the work she had to do; and protected her head with a large banana leaf from the burning rays of a tropical sun. No conjuncture, however critical, found her without resources; and we hesitate not to say that in the whole history of discovery and geographical enterprise there is no more wonderful or exciting chapter than that which records Madame Ida Pfeiffer's travels in the interior of Borneo.