Hm! How about a thin smooth layer of ice and then another and then another, all under the net -

This - stretches it? It puts strain on the spell and starts to weaken it, but there's a lot of magic in there and it can take a bit of stretching before it's diluted to the point of snapping. 

"Huh! That's fascinating!" 

Savil could probably reinforce it, but not as fast as he's weakening it, and she is getting a bit tired, so she just watches. 

He speeds up a bit.

Snap! Some of the threads of magic start parting under the strain, then more, as the tension is distributed between fewer cords. He can probably accelerate this by adding the frost-spikes trick again. 

Frost!

It's kind of uncomfortable to be covered in ice so once he's free he melts it and does the drying off trick again.

"Hmm. Could you do that faster, now that you know how? I guess it's not like they can mess with you too much in the meantime but it could be inconvenient if it took a minute to get loose." 

"Yeah, I can do it faster. Does kind of mess with my clothes." He patches a shredded section of his jeans. It doesn't come out very well.

Savil frowns at the patch. "Well, hopefully you won't need it. I'd better check if your talisman's ready, and...at that point you're probably good to go?" 

"Great, thank you!"

Savil ushers him out of the meeting room. 

"One second -" her face shifts into a Mindspeaking expression, "- oh, good, Sandra's done with the talisman - want to go grab it from her?" 

"Yes but if you could give me a second I'd like to replace this outfit outright."

"Yes, of course." 

Savil isn't sure how much undressing this will require. She politely turns her back. 

It requires all of the undressing but the re-dressing part is fast. He clips his computer onto his new pants and says, "Ready!"

Savil considers asking what he intends to do with the discarded clothes, but mostly she wants to be done with this so she can get back to her very neglected Web-maintenance work. 

She leads Cam over to Sandra's workshop. 

He carries the clothes tucked under his arm and makes an inquisitive tossing motion at the next fireplace they pass.

"- Er, normally we'd fix up clothes or at least use the cloth for something else, but...I guess with you here, cloth isn't expensive to make?" 

"It is not! But if you want them you can have them, is there a rag basket?"

"I'll take them and drop them off later." Savil holds out her arm for the balled-up clothes. "Sandra's workshop is just down this way." 

They duck outside and follow a short path between two areas of rosebushes and reach a smaller detached shed-like building with a couple of different doors.

Sandra is sitting at her work desk, staring at some crystals laid out in front of her, but she twitches to alertness when Savil clears her throat. "- Oh, right. You're Cam?" 

"That's me, nice to meet you."

"You wanted this?" She holds up another crystal talisman on a leather cord. "Power should last a couple days, any mage can re-power it for you. ...Oh, and you can make the quartz focus part, right? Would it be hard to make me another fifty, the Guard wants more made." 

"It would not be hard - this is for anti-Thoughtsensing in particular?"

"Thoughtsensing, also mage-attacks - like the one you already have - and physical mage-armour against swords and things." 

"I am actually going on a fact finding mission to determine how much I'm comfortable helping with war stuff."