Getting Value from sheet number and named cell

Gurus,

I have scoured the earth and cannot figure out how to write this line of code.

Basically I want the value from a named cell from a different worksheet number within the same workbook.

Below was my last go at it.

Idx = ActiveWorkbook.Sheets("Sheet7").Range(Row_Numbs).Value

Please help before I go MAD.
TIA.

Tim