The Indiana Jones mail mystery that had all at the University of Chicago baffled for the past week has been eventually solved.

The chaos over the surprise package resulted from a misplacement of consignment during its shipping by the United States Postal Service (USPS). The mail was originally addressed to an Italy recipient, announced the university.

It detailed its Indiana Jones saga on the Tumblr, where it earlier sought Internet help to unwrap the mystery.

An Ebay seller and expert in Indian Jones props and replicas saw-off the journal package from Guam to the address of the highest-bidder, who happens to live in Italy. But it eventually landed in the post bin of University of Chicago and kicked-off uncanny speculations.

According to Paul Charfauros, the Ebay seller, this package was en route from him in Guam to his intended recipient in Italy (registered mail confirmation attached) when it must have fallen out of the package in Hawaii, the university posted on Tumblr.

"Our address had originally been put on the manila wrapping of the journal just for cosmetic effect. We believe that the post office wrote on our Zip code on the outside of the package and, believing the Egyptian postage was real, sent it our way. From Guam to Hawaii en route to Italy with a stopover in Chicago: truly an adventure befitting Indiana Jones," it added.

Last week, the university received the package addressed to Henry Walton Jones, Jr, well-known as Indian Jones, a popular adventurous film franchise. The surprise package contained detailed replica of "University of Chicago Professor" Abner Ravenwood's journal from "Indiana Jones and the Raiders of the Lost Ark."

The university clearly puzzled and assumed the matter to be serious enough to follow through. The university was under the impression that the people behind the mail must have embedded clues for others. It also took its speculation to a blog and sought the help from others.

The university reportedly received hundreds of suggestions and conspiracy theories affiliated to the surprise package since. Meanwhile, the journal also received widespread media coverage over the past week.

The university said that the sender of the Indian Jones package has allowed the university to keep the journal.

"Paul has graciously let us know that he will make the intended recipient a new journal, and that we are welcome to keep this one," it said.