"Lunevka" is a fan-given name to specify the mental copy of Lucrezia which has been attached to Anevka Sturmvoraus's clank body, as opposed to Lucrezia's other forms: Lucrezia in possession of Agatha, sometimes called "Lucregatha", and Lucrezia's original body.
This entity starts as an un-tuned clank head made by Tarvek, who calls it some of his best work. The exact sequence of events occurs off-screen, but he evidently gives this creation to Lucrezia-in-Agatha, who somehow transfers another copy of her personality into it, either from her current biological body, or directly via the Summoning Engine in Castle Sturmhalten. The Foglios play coy with the head's first appearence, having her be a voice occupying and concealed by a large chair, gloating in tandom with the biological copy. Following a complicated series of double-crosses, Tarvek mounts the head on Anevka's body, having unhappily removed and stored away the original.  The new clank disappears into the Sturmhalten undercity with the resident contingent of Geisterdamen.
She eventually Great Hospital of Mechanicsburg, having ditched the carrier vessel with the real Anevka corpse. The clank is with the Baron, when she encounters fellow patient Zola, who presents herself a being another copy of Lucrezia; in the comic at least, it's never made clear who is actually in charge. The two compare notes and Zola tells the clank about the Baron's wasping. We also see what Lucrezia thinks of the idea of Barry Heterodyne turning up alive again. (EEK!)as a "patient" in the
Lunevka does get her audience, and takes control of the Baron, though again this occurs off-screen, and when we see her, she has moved into Klaus's room and is now firmly in charge of him as his official nurse, or so she thinks. After a bad story teller that the Great Hospital uses as an is brought in to help the Baron sleep, Klaus tells the man outlandish story which he insists is from a book of old stories by a Hungarian named Masat.  The clank comments the story sounds ridiculous, and Klaus replies it wasn't meant for her. The general consensus among fans (and Tarvek) is that it was actually a coded message aimed at Gil. In any event, she orders him to sleep, and he .
This is the last we see of her for quite some time, what she does during the destruction of the Hospital, the Baron's return to Castle Wulfenbach and the subsequent Siege of Mechanicsburg is unknown, though the general assumption is that she gave Klaus some parting orders which he did his very best to badly and inefficiently obey.
She finally England, invading the undersea dome of the Queen's Society at the head of a contingent of wasped British soldiers, in an attempt to either rescue or destroy the Agatha-copy of herself. It's not clear at first that it's even her, as her physical appearance has almost completely changed; she's been seriously upgraded with spikes and various other offensive weapons. (Though she complains that she still considers it to substandard, saying that even after two years she hasn't had time to do a proper job of it.) She loses a hand to Zeetha and her swords, but still almost kills the Skifanderian before a beefed-up Oggie intervenes, ripping off one of her arms. She and the biological copy are finally thwarted, in part because her body still responds to verbal commands from Tarvek, as installed by him when it was still run by Anevka. The Agatha-copy is extracted into a container, and the incapicitated clank is by the "Steampunk Diver" contingent of invaders; it's not clear at all who they are working for.in
The Print Novels Edit
Agatha H. and the Siege of Mechanicsburg has events (evidently) play out slightly differently: we see the clank-Lucrezia publicly and deliberately prematurely announce the Baron has died in the Hospital attack, causing a meticulously-timed chunk of chaos. And later, she is shown to be on Castle Wulfenbach, and gleefully present when the Baron forces Gil to accept having a mental copy of Klaus installed in his head. Also, Zola's conversation with the clank is depicted from the former's point of view, and she is the one in control of her body, not the Lucrezia-copy.
Physical Abilities Edit
The clank has all of Anevka's abilities, being essentially a tireless automaton as long as proper maintenance is kept up. She also shares traits of other clanks based on muse design principles, or at least Tinka, such as generating electricity. She possesses a more advanced head which allows her to communicate with a great range of facial expressions. As noted, she is eventually upgraded but still susceptible to the inbuilt .
She retains some advanced ones, can emulate some version of the Spark., bringing up questions of whether clanks, at least
While she likely still possesses a voice box tuned to sound like Agatha, which is probably a tympanum based device (like a modern speaker), it is not known if this is her natural speaking voice or if she switches to the original voice to avoid suspicion. Regardless, she can still command the Wasped as seen with the Baron.
But, most dangerous of all, she is a copy of Lucrezia.