Durnik needs a tower somewhere in the Vale,” Belgarath was saying. “I don’t see why, father,” Polgara replied. “All of Aldur’s disciples have towers, Pol. It’s the custom.” “Old customs persist –even when there’s no longer any need for them.” “He’s going to need to study, Pol. How can he possibly study with you underfoot all the time?” She gave him a long, chilly stare. “Maybe I should rephrase that.