I figured, i used google translate as well. :P
So you gave charlie control over the golem. so I did the weirdest thing I could think off. Bury it.
Imagine that titan jumping out of the ground all of a sudden, cobblestones and dirt flying everywhere.
Note that charlie assumes the thing is perfectly hidden. He doesn't know one of the opposing wizards is an earth dragonslayer. So she may sense it's pressence or something.
If she does Ris will be so damn confused hehe.