"I'm going to make this gate very small. It'll be less conspicuous that way," says Promise. "I'll make a separate one you'll be able to walk through when I've seen candidate sites." She hands him the lump she's transmuted. "That's done."

"Thank you. And here's your spike back." He exchanges it and the tinminds for the cadmium, and stores a bit of breath. "On second thought, would you be able to increase the amount of this? I'd need more for the wind thing anyway, and I'm curious about what happens if you duplicate something with a charge in it."

"I do still need a chunk of something to transmute. I can't make it out of nothing." Promise re-spikes herself, then gets her writing materials and makes two diagonally positioned crosses on the wall to mark her eye-level little tiny gate where it will settle. There's just enough room to poke her face through, or there will be when it settles. "What would be a particularly interesting experiment is to see what happens if I transmute something that is already charged."

"Try this bit of copper," he says, catching a large scrap of copper. "It's charged with the memory of, um, the cube root of eight trillion. I'll hopefully never need to know that, and can just re-derive it if I do."

"I have spent a while deriving cube roots. The way Thorn phrases it, you can't just have already done it, you do have to rederive every last one. But all right. What should I turn it into, more cadmium?"

"Yes, please. They're both charged with different things, so I've got no idea what happens. Is this instantaneous, or should I go get the other spikes while it's going?"

"It'll take a couple of minutes. Go ahead and get the other spikes."

Promise watches her gate settle and transmutes the copper into cadmium and makes fairylight notes-to-self that wink out after existing barely long enough to read.

When the Lord Ruler returns, he has two extra bronze spikes. "This one will let you think and react faster. It goes in your right side," he says, pulling it out of his own. "And this is the sleep one." He points toward one sticking through his wrist.

Promise notes these locations and spikes herself, filling tin with discomfort until the wounds heal. And she hands over the transmuted ex-copper.

"Can I reshape these so they're wearable without it affecting their contents?" she asks.

"Yes, you could even break them and it wouldn't affect the total contents."

Promise studies their current shapes, and then turns each into a snug anklet.

It occurs to Alendi, "I should probably warn you that if you ever happen to have a Mistborn angry at you, wearing metal is a strong disadvantage. That doesn't apply if it pierces your skin, unless they're an Inquisitor or me, but it matters for the anklets."

"But if it goes under the skin it's fine?"

"Correct. Then it's impossible to affect without Hemalurgy, hence the exception for Inquisitors and me."

"Right, where can I put it that won't get in the way of any spikes I might need to add later?"

Promise removes the anklets, peers at them, reshapes them into complicated winding earcuffs that loop over the backs of her ears and have piercing components, and puts them on. "Will this do?"

"You know more about what the considerations are there than I do."

"I don't... I don't require credit but I may require acknowledgment of my own initiative. If people think I'm wandering around in a haze of variously obsolete commands, unresponsive to new information, this may not end well."