You have 60 seconds to find the grave, dig and free Captain Ledisko. Digging takes a lot of time, as does opening the coffin and the roaming ghosts will NOT sit back and let you remove their friend-to-be, so... the only way we can see to solo this is to clear at least most of the graveyard before you talk to Dame Levitia, or at least the roamers. This is not as easy as it sounds. If you get one add the entire graveyard will add.
Note: The clock keeps ticking when you free Captain Ledisko but that was for the "freeing her" step only. When the clock hits zero you have still beat it.'