Do you recognize the yellow sign?

[Swede]

Casilda´s Song

Along the shore the cloud waves break,
The twin suns sink behind the lake,
The shadows lengthen - in Carcosa.

Strange is the night where black stars rise,
And strange moons circle through the skies,
But strange still is - lost Carcosa.

Songs that the Hyades shall sing,
Where flap the tatters of the King,
Must die unheard in - dim Carcosa.

Shall dry and die in - lost Carcosa.