The PCs can enter the Black Circus by a lot of means. Due to the supernatural characteristics of the place it can basically appear anywhere at any given time. The PCs can walk in the city by night and find a narrow street that leads there or they can find it in a dark deep forest. The only constant in the circus is that it will appear by night and will disappear with the daylight…
“The Black Circus” is a complete adventure for any OSR system. The adventure has a non-linear path and develops through different challenges of increasing difficulty. Inside the adventure you’ll find also a complete mini-game that coud be played indipendently.
Crucesignati is a system fully compatible with the second edition of the most famous RPG. It benefits also from the package module crucesignati-content that includes many useful files.
There are some small changes to reflect the rules I use in my campaigns. The system is available in English and Italian.