Isabel cried out in surprise, and thrust her hand forward.  The Bottle whirred as it discharged the prepared spell.  A wave of force emanated from Isabel, blowing the crumbling bits of wood away from her at great speed.  Isabel smiled and lifted her notebook to write again.  

[i]K-field worked like charm.  Disintegrated booby trap.  Must prepare new one.[/i]

She checked the ground for a loos bit of rock or a string that might have set the trap off, but found nothing.  That meant, she reckoned, that it had been set off by some sort of magic.  She lifted her gauntleted hand and started turning the dial on the back of it, trying to find traces of the magic for capture and study.