This challenge closed on 12/02/2020. See below for the correct answers.
This is a bonus offering from Madness ...
Dtz bnqq knsi ny ns Hmfqqjslj G. Ymjwj nx st uwnej, ymjwj fwj st utnsyx, gzy ny qttpx btwym yfhpqnsl yt rj! Dtz mfaj zsynq ybjqkym Kjg. yt xzgrny fs fsxbjw. Fwj dtz gtqi jstzlm yt yfhpqj ny? Xpnqqji jstzlm yt gwjfp ny? Xmtb zx bmfy dtz'aj lty.
Gjxy bnxmjx,
Mfwwd fsi Rfisjxx
Correct Answer
You will find it in Challenge B. There is no prize, there are no points, but it looks worth tackling to me! You have until twelfth Feb. to submit an answer. Are you bold enough to tackle it? Skilled enough to break it? Show us what you've got. Best wishes, Harry and MadnessBonus Challenge, a gift from Madness (see Challenge A for some background)
JADGGBJDEJGAJGEBJDHADLHBGJDADLGBDBJHJADHDAGKAJEGDKAHAHKDAJEGAKHDKAGDALEG
DKBHDKGAHJDAEAGLLADHHJDADLGAELHBELGAEAGJDGLAHAJDJEHABHKDJBEHGBLDEAGJALEG
EAGLGJEAHDAKGKDABDJHLBHEBKDGDJAHLADGGBLDEJGABDLGLAEGHAJDDLGAHKDBDAKHALEG
DKGBDHJABHDJDAGJAKDHEKAGDAGJADHKAHJEDHKBEJHBBGDKAJDGDLHAJEGAKDHAGAKDAHKD
DHKBGALEKDGBEAGJDAKHKDGAGALEBHKDEHJAHBKDBHKDAKDHEBGJHDAJBDKHGDALELGABLDH
JAEGEGBJDJHADGLBDBGKJAHDDBKGDJGAAEJHAKEHDJHAADJHHAEKJADHHAJEEJGAHDAKGALE
DBHKELAGDKBGJAHDHDBJDKHBHDBKEGAKGKDBADJHAGLDDLBGEJGAGLDBELGADJAHADLGBLDH
GAJDBGLDDALGDHJAADJGAEHJAEGJDAHKGKDADBHJBLEGELAGJAEGGALEDKGBADJGJAEHHAKD
DKHBHKEAEJAGEJGBELGABGLEDALGJAHDGDLBHDKBADLGEBJGDKHBKADHHALDDJHALGDALDBG
DJGAELGAEAGJDHKBHAKDBLGDAEJGKADHJAEGLEGADJGADKHAEJAHBDHLDKGBGJDAAELGJAGE
BLDGELAGDBGKJADHLBEGGBLDDJHADHBKEBHJDGJABHDJBDKHHBDKKAEGGALEDKGBDHKBBELG
ADGKBDGKEAGLGJDADBJGGAJEEJGBDAJHDBHLAGJEELAGKBDGBDKHGBLEELGAHKEAEAJGEJGB
AEGLGBELLADGHAJDDLGBKHDBDALGJBEGBDKHADKHDLAHDAJHADLGDBLGJADGAGLEAEGJBDHK
KADHGBLDDBGLKBDHDBLGGBKDDJHAHLBDJAGDBGLDJBEGDKHBHADKBDLGGJEAAJHEADJHLADG
JAEGHAKDDKGAJGEAKDHADKGBHJDADLGADBHKBDHLAHKDKEBGEJGADAHKAJEHDJAGDBLGHBLD
DJHAJDGBDBGJDAJGBGLDLBGDDBKGJADHBJGEBDKHBGLEBJDGAJHEHJEBBDKHLAGDALEGDKBG
JADHBDKGDBKHELGAEJHAAGJDHBELKBEGGAJDEJHAJDHABDKGHJDADLAGJBEHJDHADJHADJGB
DLAHADHJDLGALEHBDBGLDBJGJDHAHJDAAHKELBEHJADGDKHAAJEHDBGLLAEGLBEGHAKEEJGA
EHAJDBHLDGKBAHDJAELGGBDKDJHADAGLEGLAGBKDDHJAAEKHBDGJADHJDAGJGLDBLEGBGALD
DJHABKDHEBJHGBKEDJGAKEGAEAGJDAKHDAKGJADGEAHJGJDAJAEGBDGLELHBEJBGDGBKJGDA
EAGJKDAHBDLHBHKDEGLBDJGBEHJABDJHHDAJBHLDBKDHALGDGAELGKDBAELGGDBKJADHGALE
DLGABDKHBLEGDJHBGDBJDAHJHKDBBHEJDKGADJAHELAGLAGEGEAJAHKDGADKLGEBAEKHJAGD
KADHHAJEAHKEAJEGBGEJKEGAEJGAHKDADKGALEGADBGKJHADJEHAADJGGJEABGDLEAJGHAJD
DLGBDBLHDBGKAHJDDKAHLGDBBELGJAHEAEJHJAHDAKHDGBJDLBEHJADGBDLHGDKBEAGJLGEA
JHDAADLGJAGDBHDJBJDHAEJGLEGALDHBEAGJLGAEKDGBAEKHGJEAAHDKEAKGJDHAELHBHJDA
DLGBALDGJADGHDAKEBGJDJBGDKHBLBDGADJHDHBJELHBBDGKADJHADLGAGELDKGBDJAHDAGL
JADHHBDLADJGGLDBAKDHBDKHLAEGGBKDAGJEAKDHAKGDBLDGBDKHHALDADJHLDGAEHLBADLG
AJDHKBEGGJDADAGLGKEAAGJDJDHBBGJDDAJHEJGADAHKELAGDKBGDJGAELAGKADHHBKDDLGA
AEJHAJEGEJHAGDAJDBGJGJEABGEJDJHAELAGDKBGEJGADKHAAGKEGAEJLGEABDLGKBHDLADH
HAJDAGLDBLEHBGEKLEGBEJGBGKDBDKHBEBGLAEGLBHKDJEBHELGAKGDBADJHLBHDADJGLBHE
ALGEHBKDKBDGJADHADJGDALGGELADKGBDAHJAGDLAGJDHDBJDBJHJAGEGLEADLGBAGJDHEBL
LEAGDKHBGJEALGEADBLGADJHGJDBHJEBKHDBKDGBEAHJDAJHDAGJADGLBDHKDBGKAEHJAHJD
DGJADLGAEGJABDLGKBGDADGJDJBGDBJGDBHJJHDAGAELBDKHHKDBJBDGGAJDELGAJDHABDLH
GKDBDJAHDAKHBDLGGBDKJADHGALEDKGBBDKHBEGLDKAGDBKGAELGAJEGALGEBHDKDLHAHDJA
LADGGJDABHJEALEGAJHDAGLDBLDHAJGDLADGHAJEGLDBAEJGLAGEBKHDGBJEGBJEELGBGLDA
GALDDJHAEAHJELAGBDHKBGKDAHDJDLGALAEGGBKDDJGALAEGBGLDDGKBAHDJBHKDBLEGAKGD
BDKGGAELEAGLDHKBBDGKADJGDHLAAHDJDBHLBKDHDKAHEAJHHAJDDLGADHJAAEJHJAGDAEGL
ELAGGBKDEAGJGLDBDJBHBEGLLGEAGAJDELGAAEGLGDKBDAJHEAGLJGEABGKEAJDHAJGELAEG
GAJDDJGBGDBJBDLGJAHDJADHBEGKADJHJAHEEKBHLBEGJEGAELGADJHADKAHADGJELGAELBG
LAGDGDAJDBGJBJDHELBGLAEGLDHBDKGBDJHADKAHAEGLDKGBDJAHDLGADJGADBHJBJHDGJEA
ELGADJGAEJBGLAEGBELGGAJDDBGJJDBGELHBEAGLDHBKDBHKKAEGJADGBDHLDJGAGAELBEJG
GKDBKBDHLEGBELGADKHBEJBHAEGJELGADLBGLBHDGDAJEAJGDBGLAGLEEJBGKBDHJDGAELGA
EKHADKBHBEGJEKGADJAHELGADJGAHAKDEAHJDJBGDBKHHDKBAEKGAHJDAEHJDJGAELAGGAJE
AGLEDAJGAKDHAHJEEGLADKGBAJDHDKHAKDGBGLEBDAGLLADGJAEGADHJEJHABHKDKAHDDAJG
JBDGJAEGGBJEDJHABLDGGAELADGJDLGALEGADJAHAEJHLEGABKDHDBGKHDAJADLGBJEHDAJH
JADHGLEABEJHKBHDDALGEGJAGLEABEJHJDGBDAGJDBLGDGBKADHJEAHJDGJABGEJDAGLDBKH
DBGLLBDGDBGKHJDADGALEBGKGJEAHKDAEJHAAEGLKDGBGAJDAGLEDGLBGBKDHADJGKDBAGJD
AJHEHAKDJADHDLHAAJDHDLGADJBHDHAJBEJHKBDHGALDJADHGBLDDJHAHAJDDKHAGJDAADLG
DJGADBJHDBJHAEJGLAEGHBLDEJGALGEAGKBDJAHDAGJELAEGDKGBHADJADLGGJDABLHDADJG
JAEGLBDGGALEEJGBBHKDGJDAGLAEKAHEDBHKGJEBGKEADJHAAEGLBHKDAGDLAJDGBDLHJDGA
LEGAGBJEDBGKLAEGKHDBAELGJAGDGKEADJHAKBDHGBLEAGLEBKDHBHEJAGJEALEGAJGDDAHK
EHAJBDJHLBGELADGDAKHEAGJAHKDDKAGLBDHJEGAELGADKGBEJBGBEGLDLGAEJAGKBHDGDBL
EGAJLAGELBEHBGLDKBDGAHJDDALGAJDGKADHDAJGBEJGALDGBDKHGBLDBDLGLEGADGKBADJH
BJEHJAEGHJDADBGJHJEAAGJDJEHBAGLEDAJHDLGAEGJAAELGAJDGKADHAHJEBLDHJAGDDLGB
EJAGLBEGLDGBELGAEJGADKAHAEGLEJGAEKBGDJHAELGABHKDGBDLAHJDJADHJEGAEAGLEAKH
DBKHAEKHAHJEKBDHHDBLAHKDAJGDGBJDJADGDGALDKGADAHJALDGDJAGBHJDHBDJAGJELAEG
KDGBDKHBGJDBDJHAEBLGADKHAHJEJADHLDGAAELGKBGDADHJDKBGDHAJEJHADGAKJAHDJAEG
DAHKDAJGAHKDKBDHAGLEDBKGAJDHLADGBGKEKBDHEBGKAHJDAKDHLAEGJAEHHBKDDBHLKADH
DBLHADHJADKHALGEAGJDDGJBAGJEJEGBDAHJDAJGJBEHGALEAHJDALDGAGEJAGLEAKDHAJHD
DAHLADHJAGLDDHKBDKHAEBJGDAHJBGJEDKBHKDAHDLGBGJEAJHEAHDJAADLGAEGJAHKDKADG
DKGBBDHKLHDBJEGAHAKDAGLEDGKBHAJDBHLDDBKHLADGGBJDEJHADGBLDKGBDAJHLBDHJDGA
DBGLLGEABDKHKAGDJADHAELGHBDKLBEGGALEAGJDDAKGJDGAAEJGADKHELAH