30628 Monster Book of Monsters was a 316 piece Harry Potter exclusive set with 1 minifig released in 2020. Although the set was first released at LEGOLAND Discovery Centers and was to be released as an exclusive, it later began showing up for retail at other centers such as LEGOLAND Discovery Center Atlanta. In addition, the set was offered as a free promotion on LEGO.com and various LEGO retail store in January of 2021 with qualifying purchases.