The moomin troll is essentially the quiet anchor of the valley, a gentle creature that holds the home front. Moomintroll navigates adventures with his friends, but his core function isn't as a hero or a leader—it's as a gracious host and emotional center. He provides the stable hearth for the wonderfully bizarre cast, from Snufkin to Snorkmaiden, to return to. The stories feel like they orbit his house because they do; he's the one who's always ready with a cup of coffee and a listening ear, making all the chaos feel safe and welcoming. That stability turns the valley into a true home, not just a setting.
Some might find him passive compared to the more active characters, but that misses the point. His kindness isn't weak, it's foundational. The narrative tension often comes from external threats to his domestic peace, which makes you root for that peace to be restored. Honestly, I reread the books when I need a dose of that feeling—the world can be a Little My, but Moomin is the cozy armchair you can always sink into.