Final answer:
In 'The Time Machine' by H.G. Wells, the little girl they tried to save is named Weena, a character from the Eloi group.
Step-by-step explanation:
In The Time Machine, the name of the little girl that the protagonist tries to save is Weena. Weena is one of the Eloi, a gentle and childlike group of beings living in the distant future. The protagonist develops a bond with her, and when she is in danger from the Morlocks, nocturnal predators of this future world, he attempts to rescue her from their grasp. The novel is a classic work of science fiction by H.G. Wells, exploring themes of civilization, the passage of time, and social evolution.