Just FYI, I managed to seal off access to Old Wallbones' backdoor (off-screen). A long-forgotten retracting bridge that offered another backdoor is still retracted, so we're pretty much in the clear now.
Roadmap for the next few sessions:
1) Start pulling materials and furniture from Old Wallbones. In particular, we desperately need the seeds, wood, and metal stacked up there.
2) Build housing for all the new arrivals. We're sitting at around 50 dwarves, and we have beds in New Wallbones for less than half. This needs to change.
3) Add the old Hall of History into the secured perimeter. Currently, the Hall is outside the secured area. I want to reverse this situation, primarily so we can recover the artifacts interred there.
4) Attempt to recover the dead of Old Wallbones. This may be difficult; many of the fallen are in the hilariously unsecured cavern layer, and our military abilities are ...modest at best. I think I can dig up a few more qualified recruits, however, and with the materials recovered from the Old Fort, I can get them properly equipped.
5) Convert Old Wallbones into a permanent, non-functional memorial. Right now I'm thinking of converting the old dining hall into the primary burial chamber- all the dead will finally be brought back to drink and feast where they did in life.
6) With all the internal problems now squared away, we will turn our vision outward. The Gravity Blender will be completed and equipped with a stupid number of weapon traps, so we can finally fight back against the omnipresent goblin sieges.
7) Locate a source of magma.
8) ???
Also, since we're no longer on the ragged edge of disaster, I'm willing to re-accept requests for named/reincarnated dwarves. Just speak up, and be sure to mention job preference(s).