Six years ago, Batman witnessed the assassination of construction magnate Simon Vespers just as his magnum opus, Gotham Tower, was beginning construction. Incredibly, the body disappeared, but detailed instructions kept the construction on schedule. Now on the eve of the building’s completion, Simon Vespers miraculously returns. In the interim, Vesper’s company has purchased properties which, when connected, inscribe a pentagram with Gotham Tower in its center. Spawn, in his previous existence as Col. Al Simmons, undertook an assignment to eliminate Simon Vespers. Half-buried memories of Vespers’ complicity, stirred by pictures of the Gotham Tower’s grand opening, bring Spawn to Batman’s city. Together Spawn and Batman attempt to unravel a mystery that extends from America’s first European settlement and now threatens to bring Gotham City to disaster.