A Study into the Possibility of Reversing the Actual and Metaphysical Effects of Natural Death, with Particular Regard to the Reintegration of Essence and Matter

A Study into the Possibility of Reversing the Actual and Metaphysical Effects of Natural Death, with Particular Regard to the Reintergration of Essence and Matter written by celebrated Wizarding philosopher Bertrand de Pensées-Profondes. Mentioned in Albus Dumbledore's commentary on the fable Babbitty Rabbitty and her Cackling Stump from The Tales of Beedle the Bard.