If you don't want to know the circumstances surrounding Tuesday's entry in this slideshow, then don't read any further...
[spoiler]Tuesday's quote:
Ep #1109 (1970) - Barnabas - 'Children, you MUST tell me. If you know where Quentin was originally buried, you MUST tell me.'
From "#1109/1110: Robservations 09/17/03: Back to the Past"
Tad and Carrie burst in. It's all happening the way it did before, says Tad. That means we're lost! wails Carrie. First Gerard killed Quentin, says Tad, and soon after that, Carrie and I died. Gerard has forced history to repeat itself! realizes Barnabas--children, if you know where Quentin was originally buried alive, you must tell me--do you know if Quentin was buried in 1840 and where? If Quentin dies, says Tad, we'll die, too, this is our only chance. Then we might as well tell them, says Carrie. He was buried in an unmarked grave, reveals Tad, near the part of the cemetery that was fenced off.
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The version of the quote in the Robservations isn't quite the same as it's delivered in the ep - but it's close.
On the other hand, Carlie (Carrie in Hallie's body) doesn't say, "That means we're lost!" She says "Tad, that means we're next! We're next!"