|Profession||Lord Loss' familiar|
|Book Universe||The Demonata|
|First Book Appearance||"Lord Loss"|
|Last Book Appearance||"Bec"|
Vein is a character from Darren Shan's The Demonata series of books. She is one of Lord Loss's favourite familiars, and the sister of Artery. Vein first appears in Lord Loss (book) when Grubbs finds his slaughtered family.
Vein is one of the two Demons, along with Artery, that fight against Grubbs and Dervish Grady when trying to cure Bill-E's lycanthropy. Grubbs 'kills' her then only to have Artery heal her up again. Lord Loss blows her up when she disobeyed him by continuing to bite Dervish Grady.
She, many, many years earlier is by Lord Loss's side and is one of his favourite Demons and will do whatever her master says so. She also seems to live in his castle, as seen when she collects the original board in the chess room .
She accompanies Lord Loss when he is following Bec McConn around in the time before Bec 'died'. It is known that in Bec (book) Bran, also known as Beranabus, was able to control vein. He could whistle to her and rub her belly, making her as harmless as a guineapig.
Vein is described as an 'obscene' creature with the body of a 'very large dog'. She has the head of a crocodile and feet that resemble the hands of a female human.
Vein, like many demons, likes killing humans. According to lord Loss, he perfered Vein and Artery because they were most entertaining when set loose upon humans.
Described by Grubbs as a Croc-dog for obvious reasons
First demon that notices Grubbs and first demon Grubbs sees. (Also possibly the demon that killed his mother.)