Taking this feat means that the character is a devout worshiper of the Godess Velma, the Goddess of Solving Mysteries and the Patron of Investigators.

Gain +1 to your Wisdom score.

You gain advantage to rolls to see through disguises or illusions.

You gain proficiency in the investigation skill.

If you already have proficiency, you gain advantage to perception and investigation rolls to discover clues, find evidence or otherwise gain information that will help to solve a mystery.