Lily was glad to hear that the professor thought her answer was decent. Now on to the next question. She didn't know why the founders included it but she did have an idea of how it had been used. Lily raised her hand. "Since I read that Durmstrang had used it during the Triwizard Tournament back in the time of Dumbledore, I would guess that it had been used as a connection between the two magical schools." Lily replied. "I'm not really postitive though." Lily looked at the lake and then back to her notes as she began sketching the lake, while jotting some notes, trying to pick out anything odd about the lake that may lead to a better response.