I got hold of a copy of KAN's 'Colas' and its dirt cheap at 125Rs. But they have a few copies left, so hurry. Also, it is not on display and the guy manning the display area will say it is not available(he told me!). So enquire inside and get it. I also got another book of KAN 'Foreign notices in south India'. They also have some collections by Vaiyapuri pillai and others.