Found this in a cemetary, should I be worried?

Esteemed wizards, I come to you seeking advice.

Yesterday night, I was doing my homework in my town's cemetary when at 03:00 exactly, a woman's voice called out to me. She directed me to the gravestone of one "Veleda" who died in 1826. Her birth year was too worn out to read, but it is definitely not 4 digits, even 3 would be a squeeze.

She told me to dig and I found this skull with one eye in it that she claims is her own. She tells me she can help me learn the ways of magic and improve my life, if I in return help her out by creating a new "phylactery" whatever that means.

I am interested in the proposal, but when I told my friend Anne about it, she was mortified by the idea and told me to get rid of the skull before something terrible happens.

So, should I keep the skull and let Veleda teach me? Or is my friend right in that I should discard it immediately?

/uw edit: for future reference, I am talking about a fictionalised version of [this Veleda](https://en.wikipedia.org/wiki/Veleda) I'd love it if you kept your lore compatible (the link contains some mildly NSFW images)