An impossible relief from the sweltering heat, the Oasis sounds like the fevered dream of a dying traveler.  A cool, refreshing spring of water surrounded by palm trees is tucked away from prying eyes, with a single tent set up from a traveler long past.  A lost traveler may find themselves there in their time of need, their thirst slaked by the crisp and impossibly cool water.
Oasis, Desert
a traveler long past
a lost traveler
I became lost while traveling to the castle market to sell my goods.  I do not often travel away from my small village.  I am afraid that bandits will find and rob me.
Oh thank goodness for this oasis, without it I could die of thirst! How wonderful that it exists here! I thought for certain it was but a myth! I wonder how it can be so plentiful of water and refreshing, in the impossible desert Neither do I, but I am so grateful I will not even question it. I am so parched! I have become lost from traveling to try and sell my good, why have you wondered here, or how should I say? I sell food as I travel. I found myself lost in the desert, and now I am here... But wait, that is what happened to me!  I suppose this desert isn't kind to traveling salesmen! Are you afraid of bandits robbing you while you are out selling food? Not particularly. I can kill them in one move. You must teach me your ways! I have been robbed more times than I can count. I will teach you all that I know! And I will mark the safer locations on this map for you, whenever we sort out where we are.