Toad Swamp maps

[Mapster]

I am in the Toad Swamp (in the map that is labeled "Right 2") and my view doesn't look like that. In the right area, just above what was a locked chest, there is one of those diamond shaped things but on the map it looks like some sort of runes. Why does my view not match the map? I hope this makes some sort of sense. I am trying to go further north but am having trouble finding the route.

[Moonian]

That rune thing (a Magical Charm, actually) will appear only after you've received a quest from the Guild of

Spoiler: show

Magic.