Hi my sister and i got the book and we stared theorizing over whats the chance marco's family may be mewman royalty since the captian photo found in his house that supposedly spoke to him(bloodmoon) and the captian that was eclipsa's father seem so similar ( we may be streaching here but it seems suspicious to us what do u think?)
Alphonse The Worthy, Eclipsa’s father, IS the sea captain seen in Blood Moon Ball! But that picture was in Star’s room, not Marco’s, and Sweet Dreams revealed that it’s part of a series of secret passages that Eclipsa used in the past, so it has nothing to do with Marco. Why it spoke to him, and if that’s going to be explained in the near future, I don’t know.
Marco’s cheekmarks might connect him to the Butterfyl family in some way, sure, but- Festivia wasn’t a real Butterfly but she developed cheekmarks due to exposure to magic- the Blood Moon bond between Star and Marco is almost certainly involved, as Marco referenced “souls being connected” just before using the wand, and it’s a much more logical explanation than a human on Earth with multi ethnic heritage being somehow related to Mewmans