How do I book a time slot with my Merlin Annual Pass? You do not need to book a time slot with a Merlin Annual Pass, simply turn up and join the priority queue. Related articles Do I get any perks as a Merlin Annual Pass holder, when visiting Madame Tussauds Blackpool? Where do I go to gain entry with my Merlin Annual Pass? How can I book my tickets for Madame Tussauds Blackpool? How do I purchase friends and family tickets for Madame Tussauds Blackpool? What perks are included with a Merlin Annual Pass?