Elixir of youth mystery

We will send you back to a 16th century dungeon. Your execution is soon to happen! Your only chance to survive is to be bright and brave. If you find the hidden underground path to Rudolf's chamber, you will need to finish the secret Elixir of youth and bring it back to the present. In order to succeed, you will need to solve mysterious tasks, puzzles and ciphers that seem like spells and magic.