In 'angels in the attic jace clary fanfic', themes like loyalty and friendship are often present. Jace and Clary's loyalty to each other is tested and strengthened. Friendship is also important as they might make new allies in the attic among the angels or other characters. Additionally, the theme of good versus evil can be there. The angels in the attic could be either a force for good or be corrupted, and Jace and Clary have to figure out which side they are on.
One common theme is the power struggle. The presence of angels in the attic might introduce some sort of power dynamic that Jace and Clary have to navigate. Also, the theme of self - discovery is prevalent. As they deal with the attic and the angels, they learn more about themselves. For example, Clary might discover new powers or aspects of her personality in these stories. The attic setting often serves as a place for these revelations to occur.