Update

Yesterday (Friday) Josiah had another chemo treatment, along with a spinal tap.  They weren't able to see the dr after the test, but Josiah's case nurse said there wasn't anything alarming in the results, and that they were allowed to go home! They have to go in next Friday, and for the next few Fridays, for another round of chemo, but in the meantime they are back with the rest of the family at James' parents. :)