The Post Office is responsible for the upkeep of the Dragon Towers. These were created in the past to provide an early warning system for the approach of dragons. A network of towers was constructed around Tromheim, each tower being visible from at least two others. A system of flags conveyed a message back to the town where the inhabitants, forewarned, could flee to cover.
Manning the towers was never a popular occupation. Many are now in a state of disrepair, some due to time and others due to the dragons, who eventually caught on to what they were for.
Vissit one of the few remaining Dragon Towers. Guided tours are available throughout the year. For further details please visit any Post Office.