top secret zone rubber stamp

abstruse ambiguous arcane area band belt camouflaged circuit classified cloakanddagger close closet concept confidential country covered covert cryptic dark deep disguised district esoteric furtive ground hidden hushhush miscellaneous mysterious mystic mystical neighborhood obscure occult outoftheway private quiet realm rectangular red region rubber secluded secret section sector segment sign space sphere stamp symbol territory tract undercover underground undisclosed unknown unseen zone