Plagues in the Planes
Of the tenants of the Raven Queen which Alistair follows, he has chosen to act according to one. As the emissary of the Raven Queen, he is to seek out those who rule unjustly and remind them that in death everyone is equal. p. Also, slay every creature of Orcus he can.What we know
Many rulers in this world rule unjustly. And in other worlds. The Raven Prince, Kelagan, is one such ruler.Suspicions
The Host Tower in Luskan, full of the undead, seems like a tower haunted by Orcus. A stronghold to his power, it would be good to remove it.