“With that key I will unlock the princely castle, the castle of Vladímir, I will gain the knightly gear, the trappings of the knights of Nóvgorod, of the youthful war-men; and in that gear the arquebus cannot fell me, the shots cannot hit me, the warriors and champions, the hosts of Tatary and Kazán cannot hurt me. “I invoke the servant, a man, a fighter, in the host, who goeth to war with these my potent words. “My words die down, My deeds they crown.” [Kazán was the last stronghold of the Tatars. It was stormed in 1549.] _Buyán_ is a kind of fairy hill like the _Tír n’an óg_ of the Irish folk-tales, the land of youth, and cannot probably be assigned to any physical geography. Most probably the mythical Isle of Buyán is the reminiscence of the Isle of Rügen. The whole of the Pomeranian coast from Lübeck to the Memel was, prior to its conquest by the Saxons and the Brandenburgers, a Slavonic district, and the Isle of Rügen, in especial, the promontory of Arcona, a seat of the most highly developed Slavonic pagan ritual: Saxo Grammaticus has conserved us full details. Considering the intimate association of the mysterious stone _Alátyr_ (probably meaning amber) with Buyán: and the fact that _Buyán_ is a Slav translation of the Old Slav name Ruyán, the wind-swept isle [cf. English _rough_, German _rauh_, etc.]; also taken the specific references in the magic charms in connection with the facts recorded by the Scandinavian chroniclers, there seems to be little doubt that the Isle of Buyán is a folk-tale shadow of the old place of Pagan pilgrimage, contaminated, of course, with other fantastic elements. _Katomá._ This is one of the marvellous servants whom fortunate princes possess in folk-lore. In Russian folk-tales they have magical attributes, and are often described by their caps, e.g. oaken-cap, blue-cap, etc.