Tobin's Interrogator

For the duration, you can read the thoughts of the target creature.  If the creature you choose has an Intelligence of 3 or lower or doesn’t speak any language, the creature is unaffected.

You initially learn what is most on its mind at that moment and you gain insight into its reasoning (if any), its emotional state, and something that looms large in its mind (such as something it worries over, loves, or hates). As an action, you can attempt to retrieve some information the creature knows.  If the creature wishes to hide any of this information from you it must make an Intelligence saving throw, taking 4d6 psychic damage on a failed to save or half as much on a successful save. The creature must also roll a number of d6s equal to its Wisdom modifier (minimum 1) if this total is equal to or greater than the psychic damage it took then you must make a Constitution saving throw to maintain concentration (DC is 10 plus the number of previous saves made to maintain concentration).  If the total is less than the psychic damage then you are now aware of the hidden knowledge.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.