The Artist class, a group of Changelings dedicated to the creation and preservation of art for the Hive, they planned the Hive's tunnels, the buildings, even the various small tweaks to the throne room. While they were a fairly small group, they were as important as any other.
At least until Chrysalis decides they are of no more use to the Hive, and begins hunting them down. The last survivor, a young Nymph named Spinnekop, is kept alive and given a very special task. She must gain as much information as possible from her target while trying to follow the commands of the Queen.
But when Chrysalis' plan comes together, and they attack the capital of Equestria, everything changes.