Q said "Follow the bloodlines".

So:

"The House of Oldenburg is a European dynasty of North German origin. It is one of Europe's most influential royal houses, with branches that rule or have ruled in Denmark, Iceland, Greece, Norway, Russia, Sweden, Schleswig, Holstein, and Oldenburg. The current Queen of Denmark and King of Norway, the former King of Greece, the consort of the monarch of the United Kingdom, as well as the first fourteen persons in the line of succession to the British throne, are all patrilineal members of the Glücksburg branch of this house. "

King Harald V of Norway

Queen Sofía of Spain

Prince Philip, Duke of Edinburgh

Same house

https://en.wikipedia.org/wiki/House_of_Oldenburg

Did some digging on "yellow brick road" from The Wizard of Oz.

I don't know if it's already been noted but, regarding the red shoes symbolism:

Dorothy got the red shoes because she KILLED the witch.

So what if you "earn" the red shoes killing someone?

And maybe if you do it you can make a wish?

>>6749386

In the 1939 movie the shoes served the same purpose as in the book but were changed to red by its screenwriter Noel Langley. He gave a notably different appearance than in Denslow's illustrations. In addition to the silver shoes' powers, the Ruby slippers in the film were magically protected from being removed from the feet of the person wearing them unless said person is dead

so ONLY THE RED SHOES have that quality

>>6749434

It's also the path to the wizard of Oz.

"Wizards & Warlocks."