Hmmmmm, I’ll have to get a bottle of Antietam and let you know, but I didn’t know it was disappearing! I just bought my bottle locally for normal MB ink prices ($25) last week 
but that Einstein sounds awesome, I’m gonna have to grab a few bottles of it. Man I wish I bought my store’s other bottle of Leonardo now ;D at least it’s just a color, it’s not like it turned paper into lusty maidens (edited for the children after I reread the original wording)