All at once the creature halted, mid-climb. It didn't go rigid or fight, and the magic didn't slide right off its scales. It just stopped. Well, it stopped climbing. But unable to move, it couldn't adjust its grip, couldn't shift its weight to get a new grip on the wall. And it fell, gracelessly, hitting the floor hard enough splinter the floor boards.

It let out a nasty hiss struggling to move against the spell, ugly, gray teeth gnashing as the only movement it could manage.