A child action like this
public ActionResult Summaries(umbraco.NodeFactory.Node currentNode)
{
//...
var value = node.GetProperty("myProperty");
}
Then you could just call you action like this
@Html.Action("Summaries", "Blog", umbraco.NodeFactory.Node.GetCurrent())
This would give you access to the state of the current node as well as traversing the parents and children of the nodes using things like node.GetChildNodes()