This Game of Thrones heat changing mug is sure to get your morning off to a strong start. Cold, the mug shows the phrase “The North Remembers”, referring to the fact that those living in the North do not forget past events, on a black background. When hot liquid is poured in, the mug transforms to reveal the sigils of various Northen houses. Once the drink is finished the mug returns to its original state as it cools. An essential for any Game of Thrones display! This fantastic mug measures H10cm x W9.5cm and comes packaged in a decorative gift box. Not suitable for dishwasher or microwave use. © Please do not copy text. Avena product description – The North Remembers Game of Thrones Heat Change Mug.