the majesty , power , and pride of thingol rose with the development of the conception of the grey-elves of beleriand ; as i have said earlier ( p. 63 ) 'in the beginning , tinwelint 's dwelling was not a subterranean city full of marvels ... but a rugged cave ' , and here he is seen planning a foray to augment his slender wealth in precious things -- a far cry from the description of his vast treasury in the narn ( p. 76 ) : now thingol had in menegroth deep armouries filled with great wealth of weapons : metal wrought like fishes ' mail and shining like water in the moon ; swords and axes , shields and helms , wrought by telchar himself or by his master gamil zirak the old , or by elven- wrights more skilful still .