In this paper, I discuss the case and agreement system of Nias, a language that has been described as a marked-absolutive system by various authors (Donohue and Brown, 1999; Corbett, 2006; Cysouw, 2005; Handschuh, 2008; Wichmann, 2005). I shall argue in particular that the ergativity of this language is highly superficial in nature, showing that hypothesised marked-absolutive arguments fail to ...