X in the alpha tails gives us an x-ray fish, one who not only can see with x-rays and see-through item, but also has a see-through body. This book does what it set up to do. Which is to give a book, highly focused on the letter X. I even admit in writing in the back of the book that explodes are hard to come by and it’s not wrong. This may be scraping the bottom of a very old bucket but in need of a X book this one will do.