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Challenge 8

This challenge closed on 08/12/2021. See below for the correct answers.

Mission Briefing 8A: Surprise, surprise!

DECCR OAKNY ZAJLP WRZJC PFFLL KTYVY ATRTF LDCVR AEIFL TYUFM YMRKG UATFN FOWKF LLFTY SMRXY GIEVG AWRJA SEMVP YERCJ FTYVP LIJEM DAPKM ARRTI IATBR VHFNG AGFKR OEIVY UDEFN VIEKG UWRJR PNXKG TEFIP LSFLP JEJKP FIEXR VFZEB VUKZL HNPTY ZEZKU HSTCC HRKYY ATIZL PTPJC UTZKY UDVHS HLCPA SERIU OAKJF LWRER LDVMC UTYVA PPYVP AHVPF HVVLQ LDZJY TEJJY NEKFK LIKZQ KOLSJ LEETP FPKVB DIKYR OEJVA VNUJR HGVLQ PNXKF LSRDC WOCPZ PUJXP PDZLQ LDWFP TYCRQ ADZRP FEEKP FTYVW HRVKC SLZEE TEKYY AIYRT LNFNF LRVKM OIUVM UCVZQ ARZGN LDKYY AOWWG DAJCC MTNZR OAJKY UDRIB IUKKP PCBPA PPYVP AOSIC HKWFP AUERR LLPZJ LAIEC KTYVB HRBRP ASFWD YEHLC UCPRL HLPJG ZAEUA YISSG UGWIM THRIP FSFZR KIUER AABVJ VNXKM JRRTI PTKYC ZETFL KSLIN YIJVG ZTYRR PDFER RNFNU OAKKM KOEFP TACCW HNPLL ZOCZA PTVUY WPIFY JHCZI LTYZQ DOLCB IEZEQ AAEKJ FRVGM YTVUR VTYVJ HMGCG NHKVP ZSFKF LYTFS SDZET LSKZE HTVSS AAJKP PNZKW WOZER ZOLKG OAURJ YERUW JOETC HLVUR OECRQ AIEKC YCVGR MRFDF HRIPU VRIZC KTYRR PTDZE OTURK HGVYG ZTILQ AIEDC PTNZJ SNFKJ VOBXM VDZWF LFZEB ZTYRR VUKWP VMKYC TBLKG MIKVJ SHZDR OEEZU PLCRJ ZOYRT LTFKC SLYZK HBFLR AHZJB PRVTR HPGVY STFAM PNKYC TIUFL ATYZL RTYRR DICCK HKVKF PNXJY UYSVR AEISC AWVVL BSKYC YEZJQ VMVKF PNXVJ ZEKFM AHVWM BNUVP ZOWKF LCFEQ WIIRA FAIVN LRJFL HLYVP VEJFD TIEVY UDZTY UTSVY YTFKF PNBKF HTKYC FMZXF AHRMC IEVEU VRBZL NFFIR OEURP RSZUC PFZKG ZTILC AHVEG DOLCB YAKYC YFZEB VUKWM YMPJC SFKYY ULVRT LIKKM VTYVP ZIESM ZSZJS WPFJC PCFLJ KTVCJ HLCRL KOWWC YTFZL MICKP HTVKF LAXVL JYSLR AHVYG ZTFIW VFUFS ILVRE LNKJG ZNFKY OAGGW VNVZR PSYRP KTFIC HLCPR YUJKQ VMVFL LWYFF HSNFP REUWM YTYVM WPFJG AIFEC CEEZD AHVPB VIKLL KEITM CEIKM VMREW OAMVZ LEETM YRLGR LDSPR OETFK WRFDG ZEJIC XUZIC KAEUG HMEFR ZUIVG HMTLR VUKWM YTYRR ZOIKM MWFII PDFER AHZEI OAIIW DOLCB PNJZQ ABLKG HMTVP AAZEQ VMVSM KYZEZ VSJNM BLUKF LTRCI VFKYC WAEUC TITRL KCFGU PLCSC HRVUD SAXRL KSFDC VNVJM TENYC YENZJ SBVUC ZPVIY AEKFZ YERBG UTFKF LCFEQ WIIRA FDVJN LRRKC LNFLE OTFDY REDVY UOWWC YITRL ARVWS ZEZNG SLYRT LTFKY REKYG ZFLIR OEISS ABVWM YEZRE YEVKM TEVKR YIEZR FIEVC KTFBL VWDFP LTYVL HMVFD AHVJM BTVIN VIEKJ PGYKF VUJVP PNXJY IECCZ BTZTY UTIVK LMSVP DHVIC PCRDC HCIFQ ZIKZU PLCYY CEKFE LTKYC ARRZL LEJKM MIXLP LOLKU OYZKK PGYKZ LIDGM YTRER TEREU OICVG OAMVY UOKYC YMFIC BRXVL ATIZN AODRI LTFDY ZSFLP PE

Official Decrypt

Top Secret: For your eyes only

Well, that was a surprise! I found the attached letter on my doormat in a copy of the local magazine. It was clever really, there is no way to track back to how it got there and no point in wasting time or resources trying to find out. In any case, it was clear that Trinity sent it, and equally clear what she wanted. Even the cipher they have used is a message to me. It is double encrypted with the second stage using the same Polybius grid I used for my last diary entry. They are telling me that I have nowhere to hide. Once I stripped that off, I was left with a standard but tricky cipher to break. Fortunately, I learned the dark arts of frequency analysis and cribbing from Harry, so it didn’t take long to crack it. The second surprise is that I don’t know what to do. Normally any unsolicited approach like this would be instantly reported to the lamplighters so they could investigate, but as Trinity points out, I had already concealed the last intercept from Harry, worried that it might damage his trust in me. It will not look good if he finds that out from them, but if I tell him then I will also have to tell him about this direct appeal to join them. I don’t think that will make things any better between us. There is something else too. The founders of the conspiracy are personal heroes of mine, and I can’t bear to think that they might have been working for the dark side. If it is true, then I would rather find out for myself than leave it to others in BOSS. I suppose I could tell all and offer to infiltrate the agency, but the history of double agents is not a happy one. It is hard to really trust someone who has worked for the opposition, even if they do it undercover. Too many have been corrupted by the compromises required and I am not sure I am cut out for that sort of work. I don’t think Harry would insist, but I am certain somebody in BOSS would. The talk of the pandemic and COP will be a red flag, and someone, somewhere will be desperate to break into the conspiracy. Desperate enough to make me an offer I can’t refuse. I will have to take this further, but before I agree to meet Trinity I need to know more. The name of the Souter Point Lighthouse rings a bell, but I can’t remember where I came across it. I will have to get the trainees to figure out why it might be important. Meanwhile, I have another more urgent trip to make. To Massourie.

Mission Document 8B: Come on over to the dark side?

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Official Decrypt

Top Secret: For your eyes only

I suspect you already found and read my message to Charlie, so this letter won’t be a surprise. I’m taking a chance, and I am asking you to do so as well. You will not regret it. There are good reasons why you do the job that you do, but you must be frustrated by the limitations of working under government supervision, and I hope to persuade you that you could do better. You are talented and hard working. The fact that Harry recruited you would be enough to tell me that, but your record is outstanding too. Your work on the Kompromat Files first attracted our attention, but when Harry moved you to BOSS Central, I realised that approaching you was too big a risk, so we stepped back and have watching, waiting for the right opportunity to invite you to join us. You will have doubts at first, we all did. But if our founders could be here to make the case, I think you would find it easier to accept. Caroline Herschel, Ada Lovelace, Florence Nightingale and Mary Everest Boole were exceptionally talented women who found a way to step beyond the bounds placed on them by society while still retaining their position. Our group, that you have been calling the Lighthouse Conspiracy, has maintained an unbroken line of power and influence, wielded by some of the greatest women of each generation. I can’t count myself one of them, but I do count myself as lucky to serve with them, and I suspect you would too. The rewards to be gained from this work are greater than anything you can achieve in your current role. I know that you have thought about it, I read the email you sent Harry. You are bored in your exile to the Archaeologists. If you join us, you will never be bored again. I cannot hope to convince you in a letter, but I do hope to persuade you to take this offer seriously. I am prepared to meet with you, but of course there will be conditions. If you are willing to at least consider it, then I suggest that you visit the Souter Point Lighthouse, where I think you will find something interesting. I have to finish with a warning: think very carefully before reporting this. We know that you did not share the last intercept with Harry, and you should consider what he would make of that, especially if he became aware of this letter. Hoping to have an opportunity to persuade you, Trinity.

RULE REMINDER: Rapid fire multiple submissions put an unreasonable load on the servers and make it difficult for others to submit. Anyone who makes an unreasonable number of submissions will be open to disqualification. In the first instance this will mean that anyone who submits more than 20 times in 10 minutes will be disqualified.

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