Sarah had thought of cards, playing card that was - not tarrot cards.
She smirked to herself when she heard about the date. Was Flameseed that crazy to want to DATE that professor who actually believed the future could be predicted by a mortal like her?
Sarah did not believe in divinition. The only reason why she took it was because she found it entertaining and all. She could laugh t the crackpots who believed in it later.
Yet she did not care about it enough to actually research it. So she actually did not know about tarrot cards, yet she knew that there were 52 cards in a deck of muggle playing cards.