Responding to myself (because I'm obsessive like that) -- maybe a Magic Tree House based thing? If you subtract the ones that aren't about history and the ones we've already read, that leaves ~ a dozen. That could last a couple of months, if done properly. It would have to wait until the fall, probably (ALL the MTH books are checked out the library right now). But somehow this isn't a satisfying solution... maybe because the books provide random coverage, thus don't help with my feeling of disjointedness? And maybe because MTH isn't all that great? But, it would probably please dd. I'll keep it in my back pocket...
