Also note that Ayva was going to conduct magically-enhanced research into newspaper records from that time period to see if that would stir up any leads. Natsu's spells enabled her to read 1 paper/round for 32 rounds, which could be done every day for as long as it takes. I believe we were going to cover results of that research here?
Being that we will pick up with the pressing issue of getting back to base and discussing the attack, her research will be tabled for now.
If you have any questions or want to post notes of what you learned from the machinehead, that would be good.