Learnings: Across the Rainbow Bridge
The Rainbow Bridge, seen here in concept art for Assassin's Creed: Valhalla, was protected by the god Heimdall. Heimdall shone as bright as a flame from head to toe; his teeth were solid gold and gleamed like the sun. His eyesight was sharper than an eagle's and he could hear everything, everywhere. This made him perfect for the task: standing watch over the entrance to Asgard. All day and all night, Heimdall would scan the horizon for threats, a vigilant protector of the realm.
According to legend, Heimdall, standing watch, will one day see enemy armies crossing the Bifröst. As the troops storm the Rainbow Bridge, Heimdall will blow his great horn, Gjallarhorn, to warn the gods that the end of Asgard is nigh, for Ragnarök has come at last.