Christmas Challenge 2019 – Day 07 (Dec 31)

CipherSolution
Dux nqagiu isl rcwid ja fxs fhewgkywe hp bzq sjqp Qkbl rg Gsu Ipip Ywyv.
Bzq Kjqj Wvar wsbf xve zbjftcs gh dux vlvysda syt usp dux nqagiu phtnb sl duxd kvesur.
Gsu Ipip Ywyv usp dip gmkiqc pk sya etts syt n qhinq lufiklb akosv Kbbzab.
Gxkba qkdsd, fxs ukcbqq uwvqt cb muvar yw gsu zwptkx hp bzq Vfxkd Iso.
Dux vywy klr ztc ipigse umvaqt bzq pvysd va hbrxo dj vqpsap duxtb pximdxp snefns.
Ektkk, fxs Ltlt syt uwl kjqbua vtur vabvar dux Rbssf Knd.
Fxs ltlt nkc phoysv tl bzq Sngksjfmc jr fxs ukcbqq rg Soduho,
qwv fxs nhndxl’ rjaqc ixou aukdbxour snbjel dux rqfvqla pj dux nqagiu.
Bzq dfxkccdq ya qhsngqt pxsywv fxs Nhnm Ltlt’e mmrk tl n bqtsefqk.
Gsu nanysaf fgdkovv tc kpnqbxp ywetts gsu Qsfqqpxra; eabfpalrxp rg efqbhqc jr fxs lyytzfc.
Day 7 is a Keyed Vigenere / Quagmire 3 / Kryptos 1,2 with the following keys
Alphabet key : Wolf
Periodic key : King

Plaintext :
The castle was built on the mountains of the cold Alps by The Wolf King.
The Wolf King kept his promise to the knights and had the castle built as they wished.
The Wolf King had two wolves by his side and a loyal servant named Arthur.
Years later, the castle ended up being in the middle of the Great War.
The king and his wolves joined the fight in order to defend their beloved castle.
Sadly, the King and his wolves died during the Great War.
The king was buried in the Catacombs of the castle by Arthur,
and the wolves’ bones were scattered across the gardens of the castle.
The treasure is located behind the Wolf King’s body in a pedestal.
The ancient pyramid is located inside the Catacombs; surrounded by statues of the knights.