A Black Pearl smeared with Tanyenn and blood. Once this is done, the pearl becomes large and golden. It is also magical, as anyone who swallows it will gain the ability to understand the speech of the Maerum. The directions to do this are given in simple murals on the interior of the Landwalker's Bubble.
This demonstrates further the properties of Tanyenn, and that it is linked to the Maerum themselves. It is entirely possible, given the close relation of the Maerum to the Alatien, that the pearl also gave the ability to understand the speech of the Alatien, though given their love of stories, the Alatien likely speak Na'ven as well.
Obtained in the Landwalker's Bubble by combining items.