Let's Make a Deal...

The priest of the shrine is named Carina. She is interested to listen to your stories, and will extend any healing necessary prior to talking things over. After hearing your report of the situation in Faring Ford, particularly the devastation caused by the red dragon, she will agree to provide proper healing for the town.

During the conversation, she will raise a concern that has bothered the shrine since its construction, and ask for your help in taking care of the problem before you return to the town. She will show a growing reluctance to actually leave if the party won't assist the shrine with their problem.

In reality, Carina is not really inclined to withhold healing. She will speak with the acolytes and have one of them go immediately to the town with a sack full of healing potions. She will certainly go herself as well, but delays as long as necessary to persuade you to help her with the shrine's problem.

The problem is one of restless spirits. A previous outpost was built on this location centuries ago, but the building and all inhabitants were ransacked and destroyed. There is natural grotto at the back of the plateau with five rough cut rooms dug out of the hillside. The original purpose has been lost to the centuries, and none know the contents of the grotto, since none dare to enter. Carina would like you to clear the grotto of all supernatural spirits so they can properly bless the site and work on growing the shrine for Lathander. 

My thought here is a brief tomb encounter with several dangerous spirits. There can be treasure within that the party can have. I think a series of traps would also be nice. I'm a little worried that I'm throwing these ideas out and not developing them properly. I think the ideas are good, but I'm struggling to focus on them enough to work out proper details.