Ring of faerie persuasion

This helps you to bargain with a Faltyn. When you need to make a deal, roll a Die. On a roll of four or less, the Faltyn is constrained to aid you as though you had agreed to its bargain, but you needn't actually part with anything. On a Die roll of five or more, however, it will snatch the ring and immediately depart.

Acquisition
One can acquire this ring at the armoury in the Book 5 The Walls Of Spyte. However, to get to the relevant section, the Enchanter is needed, thanks to its Detect Enchantment spell. Beforehand, one has to enter Spyte through the dimensional portal, or examining red gems.

Effects
See above

Quote
''Now... which of these fine items shall I take for myself? Perhaps this ring ...?''