After finding a special key of the Hill, which contains a note to visit the Queen of the Hill, our brave Amanda begins her adventure to find the Queen of the Hill’s treasure. How shall she meet the Queen of the Hill? (a=0) Cipher text: rtca{vbuhp_kaiq_gfj_nx_rda_ujw} Encryption key: 16 25 8 14 19 5 15 17 3
The description hints at using the Hill cipher to decode the cipher text. Entering the cipher text and encryption key into this website yields the flag.
flag{climb_your_way_to_the_top}