How to get map?

[riboprotein]

So, I got one map in my game, I don't remember from where but it might've been from the enemies from a Portal?

My Explorer sadly died later on, and I haven't found any way to find another map. Help? What packs should I buy for a chance to find a new map, or what cards should I explore?

[YetiChow]

Skeletons can drop them, the Old Village has a chance to drop them (be aware that there's also a chance for it to create enemies though), or traders can sometimes sell them.

You can explore with any villager or a militia/soldier, or even a dog; explorers are just faster at it.