Normally, having such an invested audience would make Aziraphale a little nervous, but he's been on fire tonight, flawless in his sleight-of-hand, so he simply smiles at the three of them before waving his wand over the newspaper.

"And now... oh, but I think it needs a bit more magic! Baby, will you wave a hand -- er, tentacle -- over the newspaper and say a magic word, like abracadabra?"

Once Baby does as asked, Aziraphale snaps open the newspaper with a "Voila!" There's no water anywhere, the paper completely dry. Magic!