It works on one of them and he lets go...

But the rest of the others apparently are unaffected and strong enough to keep going. Their minds are a little alien and he'll find he has to focus on one of them at a time to properly enchant them.

"Hup hup hup hup!"

But at least he has one of them to possibly influence to show him the way to the same place, let him keep up with them as they move, to arrive at where she's been taken as she gets there.

The gnome he enchanted wobbles on its feet, making chattering noises.