AGOT LCG: At The Gates Chapter Pack - Rules of Play says:
At the Gates is the first Chapter Pack in the King's Landing cycle for A Game of Thrones: The Card Game. Now in At the Gates, the great Houses of Westeros gain access to blessed locations. Each gate is a low-cost location that can provide you with income from their tolls and the chance to sacrifice them in exchange for two draws if you embrace the spirit of your chosen House. Additionally, this Chapter Pack features new versions of beloved characters, embracing the plots and deadly intrigues of A Song of Ice and Fire with the continuation of the shadow keyword, first reintroduced in the Dance of Shadows cycle.