[Zapmeister]

They're both ritual spells, and so are resolved in the same step of the sequence of play. In that situation, I believe the order of resolution is indeterminate.

Since this is the case throughout the entire sequence of play, not just for ritual spells, it would be very interesting to know whether "indeterminate" means explicitly randomized, or just executed in the order that the events are read from wherever they're stored, or something else.