Amari’ gets the Pseudo-Silmaril for her accidental guess.

As Elw’, Thingol went to Valinor as an ambasador, saw the the two trees, and returned. Upon his return he talked the Elven people to relocate to Valinor, but having fallen head-over-heels for Melian he remained and didn't sail with them.
Who wrote the poem 'The Stone Troll'