Absolutely one of the most creative books I've read recently. More books that take on unconventional formats that also align really well with the plot please! A very funny but still very sharp take on religious bigotry and fascism, and it makes you read each letter very carefully to make sure the characters don't get the death sentence. My main complaint is that the ending feels rather unsatisfying to me, but I'll let you decide for yourself whether it's fitting or not.