Figuring dragon powers out takes a while, but eventually they find that, in his dragon form, Temple is completely incapable of using the Cards or scrolls. Using magic in general is, in fact, much harder. The upside, however, is that he's incredibly resistant to magic in general, and the drawbacks of using runes or running out of mana are much milder. He has mixed feelings about all of this. Learning about runes and more magic does serve as a pretty nice consolation prize, and dating the twins is an unalloyed positive that completes the package.
They capture the Libra, the Sword, the Float, the Lock, the Sweet, and the Bubbles between then and winter holidays, and then it's, well, winter holidays, and Christmas is approaching.