A thinking hat—like the sorting hat, only it uses your brainpower to help you solve problems.
You mean like the Lost Diadem of Ravenclaw? which may not exist in the Rationalverse, as it’s potentially OP. Especially if Harry gets his hands on it.
You mean like the Lost Diadem of Ravenclaw? which may not exist in the Rationalverse, as it’s potentially OP. Especially if Harry gets his hands on it.