Cursed Carnival

You and your friends have won a prize at the local carnival, but it's a prize with a difference. Since you've taken it home, you have been tormented by strange dreams and a haunting voice that tells you that you must return your prize within 7 days. You return to the carnival on the 7th day and enter the big top. From there, you must return to the old repair shed with only an hour left before the carnival leaves town for good. Can you break the curse or will your nightmares come true...