The catch is you can only order them by speaking Valyrian!
Shake Shack has provided a guide to placing an order with pronunciation guidance.
Please note that this is only at a the Madison Square Park Shake Shack in the Flatiron District. The Dragonglass Shake will be available through 5/19, while the Dracarys Burger will be available through 4/21, while supplies last.
Game of Thrones‘ eighth and final season premieres Sunday at 9 p.m. EST on HBO.