HOW FAST THEY GROW!

Doesn't it seem as if it were only last month that ATWT's Will and Gwen, and Casey and Maddie were engaged in typical teen-age hijinks like running away from a crazed serial killer?

Now they're all grown up and ready to make the scene at a high-society, grown-up function like the Halloween Ball.

Also at the soiree will be Will and Casey's mutual half-brother, Adam (Will and Adam share a dad; Casey and Adam a mom).

Adam has been out in California making a name for himself in the music business. Now that he's back in Oakdale, his presence is destined to cause a major stumbling block for one of our hot, young couples.

Want to know which one? Tune in to ATWT and see for yourselves!