The Necromancer's Stone; The Party, part seven

The party was just around the corner now.  Thalia had only one group left to attend to, and it was undeniably the most important of all, the caterers.  Not only was was it essential that she have the best food available, but it was also essential that she drove enough fear into the hearts of the entire wait staff that all her guests would be left wondering exactly what means she'd used to secure everything at the party.  She couldn't even just get away with killing someone either, she'd have to torture dozens and use a corpse of thrones while laughing maniacally in order to manage the sort of fear she wanted to inflict.  Problem being that she also had to be completely legal about it and maniacal laughter was the sort of thing that attracted unwanted attention from the police.  Torture and murder were also frowned upon, although much easier to do without being noticed.  Given the choice, she'd have paid extra for them to act afraid, like she had with Happock.  But knowing caterers, she needed to actually inflict the fear, otherwise the lingering disgruntlement would overpower it.  It left her with few, and all of them unpleasant, options.
She could curse them with fear, but many students would be keen enough to notice the spell.  But it would be easy, cheap, and have no long term side effects.
She could make an example of anyone who stepped out of line, firing them on the spot or worse.  The chance existed, prominently, that doing so would simply cause them all to quit, spoiling the entire affair.
Or she could simply strike the most intimidating presence possible and threaten them into submission.  That option would work to a point, but couldn't achieve the same level of success of the others.
Thalia paced in front of her bed.  There had to be a better way, one that would keep them from leaving, while still making it appear that she was up to something, without requiring her to actually be up to something.  She flopped down on her sheer, pink curtained four-poster bed, twisting slightly aside to avoid the open file folder already resting on it.  There had to be a way, something devious, suspicious, and effective; a way of making her seem manipulative without causing harm.
She jumped up, or rather fell off and managed to roll to her feet.  She had the perfect plan.  Now all she had to do was set it in motion.  She called the catering company she'd selected, tapping her foot lightly as she waited for them to pick up.
"Mage's Table, Summon us to feed your party; what can I do for you?"  Answered a tired, somewhat nasal woman.
"I need to book you for a party at the Hapsburg.  Junsrew Eve, send your team over at five for the night.  I've already had satisfactory payment transferred.  It'll be under Thalia Thansfeld."
She listened to the woman type for a moment, then pause for several minutes.  Finally the woman managed to find her voice.  "Will that be all ma'am?"
"Yes, that should be more than satisfactory.  Don't be late."  Thalia hung up the phone.  That should get all of their top staff for the night, and no one would question why they were there.