Several Lego sets are getting generous discounts for Cyber Monday, including the sprawling Harry Potter Hogwarts Castle Set. The massive set consists of 2,660 pieces--and it’s currently available for its lowest price ever. Both Amazon and Walmart are offering discounts, so if one retailer sells out, be sure to check the other.

Yep, in case you missed it, Amazon’s Cyber Monday Sales Event is underway, and the e-tailer also announced that there will be extended savings through December 3 with 12 Days of Deals. (Exciting news, of course, but heads up: We can’t guarantee that popular discounted Lego sets won’t sell out before the end of Cyber Monday!)

Ask anyone that comes round to my home, and they'll tell you my LEGO addiction is out of control. What started as a new set of plastic bricks every now and then, has become an ever-growing collection that takes up all the space on my bookshelves and table tops.