When Groeth, a eccentric member of the Gold Order, requested to take lodgings in the wilds of Ostland, his Patriarch granted him possession of an ancient tower - partly to remove his dangerous experiments from the confines of Altdorf. 
In 2509 IC, during the Reaving of the Soultrader however, his tower was overrun, Groeth only escaping thanks to the sacrifice of sergeant Nikolaus Brammen and his state troopers. The Wizard’s warning of invasion was heeded by Elector von Raukov who despatched a sizeable army under his command, but under the watchful eye of Toben Bell, a grizzled old Warrior Priest. 
The Empire army arrived at the tower to find the hordes of Harrax Soultrader’s hordes encamped around it as the Chaos Sorcerers of the Cult of Ruin plundered the priceless arcane lore within. As Groeth engaged the sorcerers defiling his precious library in a blistering magical duel, Toben Bell led the legendary Ostland Silvers against Soultrader and his Bloodguard. Groeth overcame the Cult of Ruin and the Warrior Priest was also triumphant, although some say the victory was not entirely his own. 
It is said that Groeth’s tower stands upon one of the magical ley lines of the Warhammer world. The Necromancer, Salama Deathshade once inhabited the tower but went mad, erecting a series of arcane structures that drew yet more magical power to his demesne.