Marco paused, then scowled a little, annoyed at being dissected like that. By now he knew that he couldn't really hide what he was, and his involvement in the Yeerk war - but that didn't mean that he liked having people pick up on it.

It was eerily like back when he'd had that psych eval with Samson, and no matter how much he'd tried to hide, Samson has still managed to get past all of his defences.

"Parasitic slugs who want to enslave people aren't exactly peaceful," he said shortly, giving up on any attempt to refute Harry's assertions. "If there's someone else out there that control me, my friends, my family? You bet I want to know about it." It was the one thing that Marco feared more than anything else. To see his mother a slave again, to end up a slave himself, unable to control his own body...he didn't think he'd be able to deal with that.

He leaned back, watching Harry through narrowed eyes. "If you want to know about who's a possible threat though, I'll make you a deal - you tell me anything you know about how to fight this curse, and how else they guys you're fighting in your world could be a thread, and I'll tell you what I know about who's potentially dangerous on the ship."