Death of the Author

One creature you touch must make a Wisdom saving throw. If you are fighting the creature, it has advantage on the saving throw. On a failed save, the target's memories of the last 24 hours are lost, and you gain them. When you make an Intelligence (Arcana, History, Nature, or Religion) check pertaining to the memories you gain, you can use the target's bonus in place of your own.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, you can affect a target's memories of the last 48 days (7th level), 10 days (8th level), or 30 days (9th level).