A New World, An Old Haunt

As a semi-experienced pokemon researcher and specialist, Dante Amaranth has befriended and captured one of almost every ghost-type pokemon; the only missing species is the elusive yamask. Dante and his ghostly crew are planning a trip to find themselves a new comrade. The night before they're supposed to leave, however, a certain recently released legendary enacts a little 'change of scenery'...