The Heirloom

 is a random event where a hero discovers her aunt has a piece of the Chalice, but does not want to part with it.

Outcome summary
If the player chooses to wait her out, the chances of each outcome are 50 percent if research is ongoing when the event triggers. Otherwise, the second outcome is guaranteed.

Start
This event can only trigger if there is ongoing research. It also requires that at least one hero does not have the Disheartened personality, as the hero is randomly selected from those in the retinue that do not already have it.

Waiting her out
This schedules a hidden event that will occur in a random whole number of years between 15 and 20, at which point the outcome of this choice is revealed.