Please, please, please write more adventures. The stories are fantastic and I cannot wait for more. It is disappointing that there haven't been any in 2025.
Oh, I actually have a solution for this! It's not a perfect, but I've done it on my home printer and gotten pretty good results. I print each spread on either side of an A4 sheet of paper, trim away the white borders, and then fold it like a typical Mausritter trifold. If you can print it on thick paper, it should come out quite nice.
Mine came out like this on cardstock:
