Serious trouble you say~? Axel supposes he PROBABLY owes Zack a flatbread or a solid somewhere so maybe if he happens across Zack in a pinch in the Farplane he'll provide some assistance(like he won't be in trouble as a potential ghost aggression target himself)

I have to figure out how exactly Axel will wind up in the event (I'll know better once we get prompts) but I'll definitely be on the lookout for Zack