PO:[sblock]You can bite Cecilia, but you can't grapple her because the fog will prevent you from moving into her space. You also can't grapple with a specific body part if you don't have improved grab, so your 'grapple reach' is 10 feet, not 15 feet. Otherwise you could use CE, although the penalty would be applied to both your touch attack and your grapple check.[/sblock]