The Wizard's Wardrobe

From publisher blurb:

This adventure can be played as a stand-alone one-shot adventure, or as part of an ongoing campaign in the world of Avamir.

This first adventure into Avamir is intended for a party of 3-5 level 1 adventurers and will set the heroes on the heels of The Guildless, a well known band of adventurers, and will take them to one of the wizard Valtara’s many hideaways, placing in their hands information that may be the key to helping set things right in Avamir.

All the while, a mysterious individual has sent them to retrieve a magic item of seeming irrelevance to the task ahead. Who is this individual, and what is it that they seek to gain through the theft of the wardrobe?