Das Geheime Elixier [The Secret Elixir]

An old legend says that deep in the forests of Wolfenbüttel there is a secret elixir that contains the powers of nature. Curt Mast, once the creator of this treasure and a passionate hunter, is said to keep it very well protected even after his death. You learned from an old document that every 56 years and for just a few hours between sunrise and sunset, a mysterious stag appears in a certain clearing and can show you the way to this place. You've followed the deer deep into the forest and soon the outlines of an old hunting lodge can be seen between the trees. Can you find the secret elixir and complete the adventure before this unique opportunity is over?