From the introduction: Zendikar: a vast untamed land, ripe for exploration. The plane of Zendikar is one rich in both history and natural beauty, dotted with the ruins of long-lost civilisations from a time far gone and ever-changing vistas as the Roil - a great storm brought about by the plane itself - reshapes the land. In the face of this ever-changing land the people have adapted - by and large nomads, the majority of the plane's inhabitants eschew conventional settlements in favour of more mobile encampments, becoming accustomed to the environment of the continents they inhabit over the course of their lives and witnessing much of Zendikar’s beauty as they learn.