LEGO 4842 Harry Potter Hogwarts Castle for $112.49 shipped. In addition, receive LEGO Bricktober Retro MiniFigure Magnet for free. Here is a screenshot for your reference. Alternatively, it is also available at Amazon for $112.49 shipped. It contains 1200 LEGO pieces, features Dumbledore’s office, Gryffindor common room with fireplace and includes minifigures of Harry Potter, Hermione Grange, Lord Voldemort, Albus Dumbledore, Professors Snape, McGonagall, Flitwick, and more. Most places have it for about $129.