Assassin's Creed Valhalla: 14 Tips & Tricks The Game Doesn't Tell You
10. Keys Are Never Far From Locks
By exploring both known and far-off lands you'll come into contact with quite a few locked doors. But don't fret, as every lock has its key, and keys are never too far from the locks they fit.
Finding these keys will likely require some investigation though, with Synin being the first tool in your arsenal to help in the search. By giving you a bird's eye view you will be able to detect whether nearby enemies are carrying a key, and if so, a quick assassination is all that's stopping you from taking a look behind that door.
Otherwise, keep an eye out for notes, which will often suggest where the location of a key may be in the form of a riddle. And finally, where there are no enemies or notes around, approach the nearest quest-giver, who is likely seconds away from awarding you this key for the completion of his quest.
But whatever you do, don't give up, as these locked doors often hide some of the juiciest in-game loot you could possibly get your hands on.