FaintlyMacabre
I happen to have the Spanish version, and both the deck and the book are indeed in Spanish. Maybe you saw an English version in a Spanish box. They seem identical, packaging and all, except for titles and text.
I can't tell if it's still available because I haven't looked, but I got my set for about $15 shipped.
I went back and checked eBay more thoroughly (closed auctions). I don't think they are Spanish boxes because there were 3 of the yellow sets ranging from $10.50 to around $36-38. One that was sealed brought $26. They all looked fine. The one had an organza bag - maybe they all did. The cards and book inside were black and were in English.
There was one set like mine (black mini kit) and it brought 24-26. It was in nice shape too.
It appears you could get a nice set pretty reasonably. The coloring books were there too. I wonder if she redid any cards for that. You know, I didn't notice any in the "sold" but maybe I wasn't looking right.
Diana