When a new army of the undead invaded Nehekhara, the meek defences put up to stop the invasion were easily thwarted and Alcadizaar himself was captured by the fell beasts.
When a new army of the undead invaded Nehekhara, it was led by W'soran and Arkhan, whom Nagash resurrected as a powerful Liche. The meek defences put up to stop the invasion were easily thwarted and Alcadizaar himself was captured by the fell beasts.