Image: https://imgur.com/odJ0477

Ciphertext:
Aol zbithypul rlfwhk pz vm nylha chsbl, svvr jhylmbssf, jsblz hyl opkklu lclyfdolyl. Nvvkifl Yhkphua, Olssv Buylhs! Fvbyz Aybsf, Alht Slcphaohu.

Plaintext:
The submarine keypad is of great value, look carefully, clues are hidden everywhere. Goodbye Radiant, Hello Unreal! Yours Truly, Team Leviathan.

Cipher type: Caesar with shift 7.