!!!!!!!
John did find the other ring! Temporal bullshit aside, he found it right after Roxy lost the Ring of Void.
Dude, he could give it to Calliope and bring her back to life. I don’t know what that would mean for English, but it probably isn’t good! He didn’t predominate normally, he killed her before he had a chance. Her coming back to life might fuck him up good.