"Sleep!" He rushes over to the object and looks around at the etched writing again. "That's why the few words I could pick out didn't make any sense. I was looking at it all wrong. I was thinking it might be instructions, or a warning, or something like that. But it isn't. It's a lullaby. A Gallifreyan lullaby. Somebody's idea of a joke, no doubt.

"It reacted to the presence of the artron energy in you and I. Time travelers. Like the Daleks. This would get materialized onto one of their ships. It would resonate at their temporal signature, and then release a pulse along that frequency to induce a hibernative state in their organic components. Put them all to sleep."