Soon after, and probably in September 130, Hadrian and Antinous travelled west to Libya, where they had heard of a Marousian lion causing problems for local people. They hunted down the lion, and although the exact events are unclear, it is apparent that Hadrian saved Antinous's life during their confrontation with it, before the beast itself was killed. Hadrian widely publicised the event, casting bronze medallions of it, getting historians to write about it, commissioning Pancrates to write a poem about it, and having a "tondo" depicting it created which was later placed on the Arch of Constantine. On this "tondo" it was clear that Antinous was no longer a youth, having become more muscular and hairy, perceptibly more able to resist his master; and thus it is likely that his relationship with Hadrian was changing as a result.