Keep in mind three things need to occur for someone to activate and travel through the Royal Road.

1. That person must be a Key.

2. That person must be at the Significator location (the location where the Royal Road touches in that arcana).

3. That person must be focusing on their destination (which would be the Fool if the person is any arcana other than the Fool).

As you can imagine, random travel by people who are Keys but do not know it to the Fool is rare but it does happen. In Mandrake's case, it seems someone painted the jester graffiti on the wall at a Significator location to help guide Keys who might not know who they are. As a Key, Mandrake can sense the spot is special as a sort of vibe running down her spine.

See everyone Thursday with a big announcement!

JD
 


Yay Mandrake escaped certain snack doom!  Wink
Heh, like the "WTF!" in picto speak.

Rodrigo
 


Pretty weird that the pictospeak shows a human couple but none there are human...

KFox
 


Just to be clear, Chrys cannot travel the Royal Road, right?


Also agreed with JD, love the WTF pictogram.
Adamas
 


Yes Chrys can use the Road but she also has her Dreamwalker abilities

KFox
 


But Chrys isn't a key, at least that we know of (from her cast page). We've seen her travel with Theresa, but not by herself.