"If it was in the compound itself, it's probably not going to explode. Which doesn't rule out other sorts of nastiness."

He nods, and mentally gropes for the words. "Anything that - backup would help?"

"I can take a look at it, if you want me to. Might be able to get an idea of what it does."

Nod.

"Let me know when you want to do that, then."

"I don't. Have a timeline." He might want to wait a day or two to show Chihiro the planted runes anyways, though he should also let her know he activated the sharingan and ask her if she wants the book back (he doesn't want her getting in trouble if it's discovered gone from wherever she got it).

Kakashi waves a hand. "Whenever works. Keep practicing here." He goes over to check on Naruto and Chihiro.

Naruto's making a lot of progress - this is something the clones are really helpful for, so. A couple of the clones have been prematurely dispelled when Naruto missed the dummy, but he's been practicing a bit away from Chihiro so he won't hit her.

Slashing things is fun!!! Especially with jutsu!!! (Sensei, Sasuke said wind was good for bladework, can Naruto use it with a blade to make a Super blade?)

You'd need a blade made of chakra-condcutive metal for maximum effect. Those are expensive. Though Chihiro has recently come into possession of one...

He's not taking her blade, it's hers, but maybe with their luck they'll stumble on another blade like that... Or Naruto's really good at saving money, he can save lots. And a small blade shouldn't be too bad...

Does Chihiro perhaps want to try?

Very well. She takes the sword out and focuses over it for a moment, as Kakashi and Naruto back up. A blue aura springs up around it, concentrated on the edge. She swings lightly, and passes through a pair of dummies without seeming to notice.

"Oh that was awesome Chihiro! You're really good at this!"

She doesn't quite know what to say to that.

It's cool. He just grins and goes back to practicing.

After a moment, so does she.

Looks like everyone's all set. Kakashi sits down under a shady tree to read, keeping half an eye on his students.

Sugira suddenly stops practicing, like he just remembered something. He then mutters something, causing a book to form in his hand, opens it near the beginning, and goes, "Holy shit."

Eh? Kakashi gets up and wanders over.

"Find something?"

"I can use the sharingan to memorize spells, fast, even after casting some - I need to figure out if there's an absolute limit to dailies - "

"Oh yes, I'd forgotten. It seems you won't need me for your experiments."

" - I can still teach it to you." 

Also holy shit if he reworks Lightning Bolt to be under his direction instead of just being an area-of-effect he can spam that with True Strike once he hits third level spells - 

"That would be very nice of you."

He does not know how to articulate 'if you were slightly younger I would be adopting you but since you are not we are friends ish' in a non-weird way, so he just shrugs.

"Well, keep up the good work then." Kakashi makes an abortive gesture like he's going to pat Sugira on the shoulder before wandering off again.