Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Name the number in series for in the ward family and the wren family

### Inputs:
table_name: table, columns: ['No. overall', 'No. in series', 'Family/families', 'Location(s)', 'Original air date']

### Response:
SELECT MAX No. in series FROM table WHERE Family/families = The Ward Family and The Wren Family