The Haunted Warehouse

Ah, the good old message board down at the Adventurer's Guild. A gathering place for want advertisements, bounty reward sketches and notes of all sorts. Earlier today, with a mug of Autumn Brew in hand, you wandered over to see if anything new had been posted.
Glancing at the board, you saw that it was, as usual, plastered with various papers. Paper of all sizes and colors, new and old. Most people either tacked the new up over the old, or tore off a hand full to clear some space. You read the following:
"Ghost Exterminators Wanted. Reward offered for completion. Ask at the Wharf's End Trading House."
This is a 70 entry Mini-Solo. The author has also published the solos: "Three Days to the Tower", "Vorkins Tower", "Granny's Garden" and "Super Hero Creation Solo".