Today's deal is set to be a bubbling cauldron of spells and wizardry, so you'd better be prepared to choose wisely... We're offering you a three-hour Harry Potter tour of London or Edinburgh for one person for £9, or for two people for £17. Alternatively, enjoy a Harry Potter tour of Oxford for one person for £12, or for two people for £22, saving you up to 70% off Celebrity Planet's prices. Muggles with a passion for all things Potter would be mad to miss today's magical deal. Opt for a London, Oxford or Edinburgh tour and see all the magical sites from your favourite blockbusters - Londoners will travel to the iconic Platform 9¾, the entrance to the Ministry of Magic and more; Oxonians will see the Hogwarts' infirmary and Great Hall; and Edinburghians can visit Voldemort's burial ground, the original Diagon Alley and soak up the magic of the city that inspired the books. This spell-binding tour departs from Leicester Square (London) Oxford Town Hall (Oxford) and Princes Street (Edinburgh) at the following times: London:

• Mon-Tues: 12 midday
• Wed-Fri: 12 midday and 7pm
• Sat: 12 midday and 4pm
• Sun: 10:30am and 2pm

Edinburgh:

• Sun-Thurs: 12 midday

Oxford:

• Saturday: 12 midday