The mailer was something I had been expecting from swaptree.com (though I had expected a book inside it); the rest of the junk was unfamiliar.
Police were telephoned. One arrived, prodded the stuff and said it wasn't worth enough for him to be bothered about, leaving us to dispose of it.
Sleuth that I am, I read the label on the box and on the paperwork and got a name and partial address. The phone book provided a number. The box owner didn't live there anymore, but now lived in our neighbourhood, and this was his new phone number. So another call, the the neighbour arrives. The box of stuff had been stored in his carport down our alley.
Aha! Mail thief had struck our house and rolled down the alley, grabbed the box to see if it held anything interesting, gotten bored with it and dumped it somewhere nearby (though the DVDs in there were surely worth more than the book that the thief took which sells on amazon for a penny). Then someone saw my address on the envelope and dumped the box on our doorstep.
So, no book but at least no box of junk. Today I will take the empty envelope to the post office and whine at them.
Too much excitement, especially after I had witnessed a drug deal half a block from our house the afternoon before.
I hope there's no point in staying tuned for further adventures. That would be good.