Two sneaky bookworms \u201ccannibalized\u201d a Pittsburgh library by swiping more than $8 million in rare tomes \u2013 including Isaac Newton\u2019s \u201cPrincipia\u201d and George Washington\u2019s journal \u2013 in what could be the largest book heist in history, prosecutors said.\r\nThe pricey works were pilfered from the Carnegie Library over the course of two decades by a pair of crooks who best knew the worth of the collection \u2013 archivist Gregory Priore and John Schulman, who owns Caliban Book Shop, which deals rare books.\r\n\u201cGreed came over me,\u201d Priore, 61, admitted to investigators in an affidavit,\u00a0according to the Washington Post. \u201cI did it but Schulman spurred me on.\u201d\r\nTheir folio fraud was cooked up by Priore, who had been in charge of the 30,000-item William R. Oliver Special Collections Room since 1992. He approached Schulman, 54, in the late 1990s about selling some items to help stay \u201cafloat,\u201d he told detectives.\r\n\u201cI loved that room, my whole working life,\u201d Priore said.\r\nSchulman\u2019s store in the Oakland section of the city \u2014 located about a block away from Carnegie Library \u2014 billed itself as dealing \u201cused and rare books.\u201d\r\nPriore would steal the historical works and drop them off at the bookshop on the way home. Schulman \u2013 who was described by his attorney as a \u201ctitan in the book community\u201d \u2013 sold some of the literary goods on eBay.\r\nThe Allegheny District Attorney\u2019s Office charged the men with removing 320 items and destroying 16 more. Taken were works including a 1787 first-edition book with Thomas Jefferson\u2019s signature, Adam Smith\u2019s \u201cAn Inquiry Into the Nature and Causes of the Wealth of Nations\u201d and Newton\u2019s \u201cPhilosophiae Naturalis Principia Mathematica\u201d worth $900,000.\r\nThe one-of-a-kind items ended up all over the world. The book signed by Jefferson, \u201cDe la France et des Etats-Unis,\u201d was sold by Caliban to Bartleby\u2019s Books for $5,000 in 2013 \u2013 and eventually landed at Bauman Rare Books, which had it listed online for $95,000. Bauman later returned the book to detectives.\r\nNewton\u2019s book made its way to London book seller Peter Harrington, who bought it from Caliban in 2013 based off bogus documents that it had been properly obtained from the library. Harrington recovered the book from a private buyer and returned it.\r\nThe pair used a stamp to mark the stolen books with \u201cwithdrawn\u201d to make them appear like they were legitimately removed from the library. Schulman told detectives he\u2019d stopped stamping the books because it \u201cwas not the correct thing to do.\u201d\r\nPriore told authorities he sometimes used an X-Acto knife to carefully slice maps and illustrations from books. He placed small items in a manila folder and rolled up larger ones to sneak them out of the library.\r\nAbout $1 million of the collection \u2013 including the Newton volume \u2013 has been recovered but others, like Washington\u2019s diary, remain missing.\r\nProsecutors aren\u2019t yet sure how much money the two men raked in. Priore took in about $117,000 in checks from the bookstore between 2010 and 2017 and deposited $17,000 in cash over that same period.\r\nOn Wednesday, prosecutors filed a motion to freeze two of Schulman\u2019s bank accounts, saying the money may be needed to pay restitution,\u00a0the Tribune-Review reported. But his attorneys is fighting back, arguing that he needs the cash to pay bills and support his wife, who co-owns the bookshop.\r\nA hearing over freezing Schulman\u2019s accounts is scheduled for Monday.\r\nOne of Priore\u2019s accounts has already been frozen. He was placed on leave from the library in April 2017 and fired two months later \u2013 after an audit found discrepancies between a 1991 survey and what was actually in the archive room.\r\nLast summer, a search warrant executed by detectives turned up the \u201cwithdrawn\u201d stamp and a bunch of stolen goods at the Caliban warehouse, which art appraisers helped cops identify. Some of the items were returned to the Oliver room, which remains closed.\r\nSchulman\u2019s lawyer Robert G. Del Greco Jr. told the Washington Post, \u201cThe complaint sets forth serious allegations, and we are treating them as such.\u201d\r\nA lawyer for Priore couldn\u2019t be reached.