
Lagernoggin |

You could have the PC's save Aldern on their way to Magnimar along the Lost Coast Road. Aldern, and his one-eared manservant Rogors Craesby, could be returning to Foxglove Manor from Magnimar with the cages (one week after the campaign starts, according to the timeline) when they are attacked by Licktoad goblins who wandered farther south than usual, or maybe some of the remnants of Shaz "Redshiv" Bilger's bandit gang. The PC's show up just in time!
Then you could just skip the Boar Hunt, or, better, mash it into the rescue by doing a bit of RP with Rogors and Aldern: they go on about how thankful they are, and how lucky they were that the PC's happened by, yada, yada. Have Aldern interact with his future obsession in particular, to impress him on the players so they know who he is.
Then have them part ways after much thanks, and have the PC's continue to Magnimar and do your Ironbriar interlude. Maybe give the PC's a month of downtime to make magic items or whatnot (and opportunity for Aldern to take things from his obsession...). Then they are up to speed.