The Circus Infinitus - Broken Promise - The circus Infinitus, #3

The Circus Infinitus is forced to make an emergency landing in the Wild West. Parts are required for repairs, and the Ringmaster, Professor Abbacus, Dr Tumblety and Felina travel into a small town called Broken Promise to find a blacksmith. The circus folks discover that Promise Falls is under a terrible curse, and none of its locals can leave. A pair of local card-sharps direct the carnies up into the hills, to a Native American camp where they claim the curse originated.
However, the tribe's shaman informs the folks that the curse came from an entirely different source. The Ringmaster and his companions must defeat an evil force from within Promise Falls itself - an evil Professor Abbacus knows all too well. Also available:The Circus Infinitus Stories Volume 1The Circus Infinitus Stories Volume 2The Circus Infinitus - The Bidgee Code