How to fast travel in RuneScape: Dragonwilds

Getting around in RuneScape: Dragonwilds can be a bit of a pain. There's a lot of ground to cover, so getting from point A to B, or from your bedroll to your gravestone, can be time-consuming. Luckily, there's a way you can unlock fast travel, but to do so, you need to start crafting lodestones, and you won't be able to do this until you've found a specific material. Confusing, right?

To craft a lodestone, you need a vault core. These are, funnily enough, exclusively found in vaults which...