Out of the Darkness(2000)

Peter David

Centauri Prime declares war on the Interstellar Alliance in Book Three of the epic trilogy that continues Babylon 5's brilliant legacy . . .

Blind to the fact that he is a pawn in the Drakh's deadly strategy, Centauri prime minister Durla launches an overwhelming blitzkrieg, sending Centauri warships to devastate other races' homeworlds and pave the way for total conquest.  Yet Durla is forced to fight a war on two fronts.  Even as he mobilizes the massive space fleet for its glorious attack, resistance leader Vir Cotto works feverishly to counter the Drakh's evil influence on Centauri Prime.

Emperor Londo Mollari possesses the key that can reveal the presence of the Drakh, but to do so would spell disaster, so he is forced to remain silent.  But when the Drakh bring another pawn into play--David Sheridan, son of Alliance president John Sheridan--the time for silence may be past.  If Vir and the Resistance are to prevail, it will be only through action, and with help from very strange allies . . .