Uriel bristles in a way that makes the air around him smell faintly of ozone. Castiel holds his ground while trying to calculate out a new strategy.

Alastair. Of all the demons.

Alastair cannot take Anna alive.

"Leave, now. Or we lay you to waste."

Perhaps unsurprisingly, the demons choose to take their chances with Option 2.

Alastair is not as strong as Lilith, but he's strong enough. While Uriel dispatches the demon's underlings, Castiel, in due course, finds himself down, with Alastair preparing to rip his essence from his vessel.

Strand by strand.