Hammerhead
Explorer
Well, as a 9th level evoker, I assume you have a fearsome reputation. No common thief will steal from your room. If one does, make it known YOU will track him down and YOU will kill him. A Scry spell will do the trick. After you get a reputation for killing punks who break into your room, they'll leave you alone. Or, depending on your alignment, make an arrangement with the Thieve's Guild. Besides, your spells will be able to stop them anyway.
As for uncommon, high level, magic-equipped thieves: guards, invisible needles, alarm spells, and/or whatever probably won't help. Generally, if a 12th level rogue combined with some mage and cleric friends want to steal your stuff, not much you can will stop them.
As for uncommon, high level, magic-equipped thieves: guards, invisible needles, alarm spells, and/or whatever probably won't help. Generally, if a 12th level rogue combined with some mage and cleric friends want to steal your stuff, not much you can will stop them.