The Istari Quest

[Findegil]

From 'Unfinished Tales of Númenor and Middle-Earth'; part Four; chapter II: 'The Istari':

Indeed, of all the Istari, one only remained faithful, and he was the last-comer. For Radagast, the fourth, became enamoured of the many beasts and birds that dwelt in Middle-earth, and forsook Elves and Men, and spent his days among the wild creatures. Thus he got his name (which is in the tongue of Númenor of old, and signifies, it is said, "tender of beasts"). And Curunír 'Lân, Saruman the White, fell from his high errand, and becoming proud and impatient and enamoured of power sought to have his own will by force, and to oust Sauron; but he was ensnared by that dark spirit, mightier than he.

This does not mention the Ithryn Luin directly, but it is indirectly a statment that they failed.

Respectfuly
Findegil