This is just like every other riddle game. When you find the answer, type youranswer.htm in the address-bar instead of "darkforest.htm". Source code can be a hintful place...
Click on Enter Transylvania to start the riddle.
WARNING ~ USE SPOILER TAGS WHEN NECESSARY.
DO NOT GIVE SOLUTIONS. GIVE HINTS ONLY.
THIS IS HOW YOU MAKE SPOILERS ~
[spoiler=Title Here]Enter text here...[/spoiler]