He heads to Prime's world.
"Hey," he says. "I need you to do something."
"Yes, I assume that if all Bells of your acquaintance evaporated you would make some businesslike attempt to retrieve us for practical reasons, and if that didn't work you'd make sarcastic comments and move on without incident."
"And making ships that go to the moon in minutes flat and who knows what Phix will be able to do when she's fully explored her talents and all of Katydid's cunning spellbinding."
"Yes. Those, too. Also, if I'm not mistaken my alts would be incredibly distressed at the mysterious disappearance of all Bells."
Spring pats Max on the shoulder. "There, there, I do not expect any of us to disappear."
"Gah, that feels weird, I've gotten used to them by now..."
"Nah, nah, take 'em, the tail too, I can replace them later, but I'll probably fall over constantly, they help a lot with balance. At least it's lunar gravity."
"Oh, very nice. But I think I will go back to my preferred number of appendages after this visit anyway."
And then poof. Bye, wings. The tail follows, shortly after.