Like most haunting spirits, hers doesn't ever vanish.
But if it ever vanishes altogether the fact will mark a victory for American.
With all this competition from online, big retailers and even the increasing number of restaurants and cafes selling art, could it be the case that the physical gallery ever vanishes?
And unlike the others who moved to other teams over the winter, he's too closely associated with the failure to ever simply vanish from the city's collective memory.
Perhaps because he staffed his office with women who were strong and not the silent type, and who, he said with characteristic playfulness, controlled him more rigidly and effectively than the guards had ever done, sexist expressions vanished from his speech.
The fate of Greenland's Norse colonies has endured as a human mystery ever since the last Scandinavians vanished from this island, apparently two generations before Columbus rediscovered America for Europeans.
Since the suspects have vanished from sight and are unlikely ever to end up behind bars, could it not be seen as a colossal waste of time, effort and money?
The family hushed up the circumstances of his death, and his oeuvre vanished from view, to the extent that it had ever been noticed.
So it must have existed - but the India Museum has so completely vanished from memory that it seems hard to credit there ever was such a place.
In what Mr Mearns predicted would become the most expensive search ever, specialist teams would only recover what was required to answer why MH370 vanished from radar screens.
