Illusion - it's one of the first cantrips I learned. It takes a great deal of power to make something appear real, but for holograms like this, it's fairly low-key.

[ The image fades, replaced with an image of three women, one older, and one of them a slightly younger Ilsa, at a table in a nice residential garden. ]

Mage-work is really strong in my mother's family, which is not the normal thing. The extra kick I get from being a guardian in the network came in while I was in high school.