Mild spoilers follow.
Solo quest to lift a curse on a village. Replay value as there are multiple routes to success, some easier than others. Some "puzzle book" elements: secret instructions,
with one complete message very difficult to find in a single play; a pair of linear simultaneous algebraic equations to solve. A number of rousing combats.
Appropriate content and themes for a Dragon Warriors adventure, although conversion to other systems would not be too hard. Links seem accurate.
(i) Make the beggar encounter easier to find;
(ii) A mystic or sorceror with appropriate knowledge could be given a chance to find "the ritual solution" despite not having all the clues.