Jellal, Meldy, and Oracion Seis come across Rusty Rose, who tells them of his encounter with Tartaros after finding out the Dark Guild was preying on Dark sub-guilds. Later, Jellal and Meldy head off towards Tartaros, but someone doesn't want them to go...
Or, more accurately, 
you're going to return them.
لأكون أكثر دِقّة، سوف ترجعونها