A rare book laced with a deadly poison has been discovered by librarians in Leeds as part of a global search for the toxic texts stashed on shelves across the world.<br /><br />Leeds Central Library’s copy of My Own Garden: The Young Gardener’s Yearbook was published back in 1855, and has been safely tucked away behind the scenes at Leeds Central Library, well away from visitors.<br /><br />Recent research carried out by experts at the library revealed that the seemingly unassuming book most likely owes its vivid, emerald green colour to a dye containing quantities of arsenic, which can be lethal when ingested. (Video provided by Leeds City Council)
