What was Hercules' last labor?

Hercules' last labor was indeed to bring Cerberus up from the Underworld. This task, assigned by King Eurystheus, was particularly significant not only because it involved confronting the fearsome three-headed dog that guarded the gates of Hades, but also because it symbolized Hercules' ultimate triumph over death and the unknown. This labor illustrated the culmination of his hero's journey, showcasing both his bravery and strength.

In mythology, the successful completion of this task marked the end of his servitude to Eurystheus, as it required not only physical might but also cunning and respect for the rules of the underworld, where Hades permitted Hercules to take Cerberus as long as he returned him unharmed. This labor effectively demonstrated Hercules’ growth and development throughout his trials, as he transitioned from mere brute force to a figure capable of navigating the complexities of life and death.

The other tasks, while significant in their own right, were completed earlier in Hercules' series of labors and did not hold the same thematic weight or concluding impact for his character arc.