How to Play Champions of the Hundred Halls

About Champions of the Hundred Halls, from BoardGameGeek:

Champions of the Hundred Halls is a captivating 1-4 player coop strategy card game set in the bestselling Hundred Halls universe by Thomas K. Carpenter. Players must work together to defeat various scenarios from the books like a demonic invasion, or a delve into a trap filled dungeon while dealing with complications from the realm you're fighting in. The game sets up quickly, is simple to learn, and lasts 50-90 minutes with various levels of challenge available. The deluxe edition has an impressive 640 cards which includes 9 player decks, 6 scenario decks, and 5 realm decks including over 320 unique cards. The high variation ensures a rich and varied gaming experience every time. The game is a must-have for strategy card game enthusiasts, promising endless hours of engaging and strategic play, or play some of the easier combinations for a fun family game night. -description from the designer