As an addition: We have a relatively high quality crab spirit in one of our skeleton that we have further enhanced by combining it with another spirit. Furthermore, we have the ability to transfer spirits from one animated body to another. So I suggest we remove the crab spirit (which we shall name Mr. Crab) from the skeleton and try putting it in a rat/mouse if it looks like it can contain it. That way, not only will it have a higher chance of completing its mission but when it's done we can just put it back into its skeleton and have it transcribe things or even answer some questions. Make sure it's well fed and understands that it should do its best to remain unseen while trying to find the information. Also make sure to state its objective in a way it understands.
+1, if the crab spirit turns out to be too big, we should put it back into the skeleton and put one of the others inside
+1
+1 But I think we should name it Mr. Crabs instead.
You leave the table and head back up to the medical section of the library, returning to where the skeletons are waiting. You have Piecewise bring you a rat and proceed to tear the spirit from the skeleton and put it in the rat. Despite the large difference in size, it does work and the rat reanimates with the large phantom as its motive force.
You head back to Esme and tell her the new plan. She considers it for a moment and then nods.
"Its a good idea, limits our risk. You'll need a large bird for it. Hawk or something else predatory that would be able to carry a rat. We could buy a tame one...or try to find a dead one so we don't have to kill it. Or we could just kill one in the wild." She looks up at you "We should enact all this from somewhere in the wilderness, by the way. There are a lot of eyes in a city, and a hawk carrying a rat, both of them with necromantic tethers, could draw attention. I think we ought to head out under the guise of camping, stop as close to the checkpoint as we can, and then use that as a base for operations. I'll go check a map, see if there are approved campsites anywhere nearby."
She returns a moment later with a large topographical map, spreading it out on the table in front of you.
She then seems to trace roads you can't see until finally tapping her finger on a particular spot.
"We're in luck, the prison and the checkpoint are all on what is technically a national park here. Its all government land, so they probably put it there so they could build it without having to attract any attention. The road..." she traces what looks like a natural canyon with a finger tip," follows this path, with the prison in this clearing area here. We should be able to 'camp' somewhere up near this cliff here and send your spies off from there. Might even be able to watch them go and come back."
She sees you squinting at the map.
"Ah. Sorry. Maps are a controlled information, especially maps showing governmental buildings and installations. We only have topographical maps here, so we can't be in volition of censorship laws, but I have many other maps memorized. I'm just remembering where things are with this."
You nod and then bring up that the "You" has become "We" the more she talks about this. She rests her elbows on the table and sighs.
"Yeah, I wasn't up for an assault but if we're just spying then...Well I just spent a hour or two trying to defend you so being there to see what you do will at least give me a better footing to argue on. Plus I think us together is a better cover story than you and your rubber faced bodyguard."
She looks at the map again, thinking aloud.
"So a Hawk, some camping gear, and a good cover story. Anything I'm forgetting?"