A Dance with Dragons
When Galazza Galare returns to Daenerys she is accompanied by three Blue Graces from the temple. They bring news of a sick and wounded rider who arrived on a pale horse. Grey Worm adds that he gave orders for the rider to be brought to the Blue Graces. One of the Blue Graces takes up the tale and tells Daenerys that the Unsullied brought the man to the temple, where they attended to him, though he died within the hour.
When Strong Belwas is poisoned by the honeyed locusts he lingers near death in the Temple of the Graces, under the care of the Blue Graces … though Ser Barristan Selmy half suspects that they are trying to finish the job those honeyed locusts had begun. After Prince Quentyn Martell is fatally wounded by Rhaegal's dragonflame, Barristan summons the Blue Graces four times to attend to Quentyn, but they never come. He wonders if the last of them have been carried off by the pale mare by now.