What's the best way to se in the dark without giving your location away? I'm thinking medieval here and not science fiction.
Yeah but they aren't easy to carry around plus how are they going to let me know what they see?
I'm surprised no one has mentioned magic. With the element of magic you can solve most any problem in a medieval situation. This isn't limited to the magic-user either since you can buy or find an object to enable you to see in the dark.