<P> Mining expeditions were sent to Khazad - dûm where mithril was again mined, used to restore the gates of Minas Tirith, but Khazad - dûm was not immediately recolonized . There are, however, indications that a Durin the Last later did rebuild this Dwarven Kingdom, returning Durin's Folk to their ancestral homes . </P> <P> Apparently the Dwarven race began to dwindle by the end of the Fourth Age, for their women made up less than a third of their population . Often, the women would not desire to marry, or want a husband that they couldn't have . Similarly, many Dwarven men were too engrossed in their crafts and did not have the time to take a wife and have children . Their ultimate fate is unclear . </P> <P> Orcs and Trolls fled to the far east, and never fully recovered . Either during the end of Eldarion's rule (or 100 years after) or near the end of Aragorn's, there was some talk of "Orc - cults" although these seem to have been founded and run by humans . </P> <P> The future of the Ents and Huorns is unclear . Aragorn granted them Fangorn Forest as an enclave and gave them permission to expand the forest again west into the vast wastes of Eriador where once a vast primeval forest had spread, but Treebeard lamented that while the forests may spread again the Ents would not, as the entwives had not been found up to date (nor would likely ever be found). Over time they dwindled off and more of them became increasingly "tree - ish" and it does not appear that they ever enter into the affairs of other races again (it is unclear if a non-communicative tree - ish Ent can be considered "dead" or if in a sense they persist to the present day). </P>

What happens to frodo after the lord of the rings