Past the graveyard, not full of ghastly undead, we get to the sewer entrance. It kinda stinks, which at first we take to be why 'Captain' Salvador's Blink Dog refuses to go in. But Sal communicates with his familiar, and the Blink Dog tells him that 'it is unnatural in there'.
'Okay, stay here. Wait for my return.' And, with that, we head in to the sewers.
'Huh. Your dog has effectively just sent you in to scout. Which of you is the familiar, and which the master?'