Passing argument between views

I want to create a View of event nodes where each Event displays an associated venue node beside it. I'm using Display Suite with views to ouput a view of all Event nodes (as full node views). I've created a second view, called Venues. I want to pass an argument (the NID from a nodereference field on the Event node type) to this view, which will display as a block. I can then add a block-field to the Event node display (in display suite). The supplied argument will output a view of the proper associated venue and my view will be complete.

But here's the rub: how do I pass the nodereference NID from the first view to the second?

This has been haunting me for a while, and any help is appreciated!