(RtG) NOT the Ozone hole.

(Projoy) Thoughtlessness? NO.

(Chalky) 2 words? YES, but one is the definite article.

(Raak) Currently in existence? YES, somewhere.

(SM) NOT the heavens *some audience appreciation*
(Chalky) Boris' nemesis? Alas, NO.

(Raak) The essential calm? Er, NO, though there is a possible connection with the AOTC.

YES - BISMARCK HAS IT! The AOTC is actually The Night but that's near enough or we'll be here, er, all night. I hand you the illuminated baton - you can switch it off when the light improves.

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I reckon this is a THHGTTG "Thumb" in disguise. Anyway, the next card has something that is ABSTRACT but could be argued to be MINERAL. If you look over there, you can see Nadine Dorries performing a mime of the subject in a monokini, as the Mystery Voice announces the answer to the audience.

[Ros,Bis] Bravo!

[Tuj] No. We are p-empty.
[Rosie] Not stoning of any kind.
[Chalky] No Midas touch here.
[Raak] Not a rock of any kind, nor a roll.