Dear Tom,

My time travel adventure is going very well. I’ve watched pyramids being built and Stonehenge assembled. Following the builders has been tricky—wouldn’t have managed it in the old DeLorean time machine, even with hover conversion, so thank you for souping this baby up.

The builders are about to move on from this site. I overheard one of them tell the locals they were heading to China to build some more of these churches, and maybe a big wall. At least I think that’s what they said. It was hard to hear over the whirring of their warp drive.

Sincerely,

Doc Brown