艾伯特·"艾比"·波登（Albert "Albie" Bolden，1893 – 未知）著名称为“黑色十字”，是位活跃在20世纪初的圣殿骑士特务，乔装在巡回夜总会的爵士乐队《艾伯特·波登与哈林热舞者》中担任领导吹鼓手，并在世界各地旅行。
One month later, as China was marked by a growing conflict between the Chinese Communist Party and the government of the Nationalists, the Black Cross confronted and killed Yuri Dolinsky aboard the Templar-built train, the Great Wall, as it traveled through Chekiang province for using it to support the warlord Zhang Zongchang in opposition to the Order's interests.
在四月，黑色十字和他的乐团在上海的一间俱乐部进行演奏，并见证了达利斯·吉福特的到来。当吉福特要寄送给蒋中正包裹被自称茹的妓女偷走时，他跟着吉福特到场外。在附近的屋顶上，黑色十字观察到两位法国人接近了吉福特，在两人相信这位年轻人就是黑色十字后他决定介入。 Having rescued Darius, the Black Cross discovered that the men were actually French police. After exchanging pleasantries, the Black Cross promised to retrieve the absent package for Darius as he was ordered to offer aid directly by the Nine.
The Black Cross released smoke bombs and attempted to escapes the through the amusement park, he used environmental opportunities to take down his pursuers. Until he came across Fiery Crow, during their fight, Cross managed to stab him with his Templar pin, before being rendered unconscious. When he awakes he found himself face to face with Du Yuesheng, leader of the Green Gang Triad. Du mocked the activities of the Templar Order thus far in China, whilst Cross attempted to discover the whereabouts of the box. The conversation turned to the poison of the Templar pin, at which point 'Fiery Crow' keeled over, freed once more. The Black Cross planned to be captured, only to discover what Du really knew. He promptly grabbed his possessions and gunned his way out of the nearest window as he escaped.
The Black Cross investigated the servant of Madame Sun, earning himself a meeting with her. They discussed how she orchestrated the events to retrieve the box, and ultimately showed him the empty box. Sun revealed to the Black Cross that it was the machinations of Chiang Kai-shek. He searched, and eventually kidnaped a convoy driver who he interrogated. The Black Cross discovered that they were ordered to kill an actress and a 'British Kid', the Black Cross arrived and prevented Flowery Flag from finishing the job, The two men engaged in hand to hand combat until Flowery Flag pulled out a gun and shot him, hitting him in the shoulder. As Flowery Flag moved to kill the Black Cross, Ruan stabbed him in the back. Using the diversion, the Templar quickly wrapped his Templar Cross chain around Flowery Flag's neck before pushing him through a window. Flowery Flag was hanged with the chain. Darius fired a gun into the back of the Black Cross, citing vengeance for his father. Cross tried to protest that he did it for the order, but Darius fired multiple shots into him. Black Cross stumbled and fell of a ledge, with a brief flash of his wife and child coming to mind.
Bolden survived the fall and was brought to a local hospital, where he was treated. After the incident, Bolden failed to report to his superiors, which led to the Order sending Rufus Grosvenor, a high ranking member to find out what happened to him.
A year later in a Chinese opium den in 1928, Bolden encountered Grosvenor, who attempted to blackmail him, threatening to reveal to the Order that he is alive if he didn't gave him the Koh-i-Noor, but Bolden refused and left.
Knowing that Grosvenor would track down the artifact eventually, Bolden travelled to Switzerland and retrieved it from the bank it was secreted in. For the next 9 years, Bolden kept the artifact with it throughout his journey to hid it from Grosvenor.
Sometime in 1937, Bolden returned home to find his family murdered and the Piece of Eden stolen by Grosvenor. Vowing revenge, Bolden tracked the Templar for the next few months, eventually to Spain, where he finds Norbert Clarke, Ignacio Cardona holding the Koh-i-Noor and a group of Spanish Assassins in the Assassin hideout. As Cardona pass out due to the usage of the Piece of Eden, Bolden attacked Nobert Clarke and the Assassins which caused him to suffer several bullet wounds. Unable to get close to Gorsvernor, Bolden took the unconscious Assassin instead and escaped to a unknown location.
At the hideout, Cardona regained conscious as Bolden was patching up his wounds. Bolden revealed himself as a Templar and the Black Cross which led to the Assassin attacking him. Bolden easily subdued him and explained to him of his 'death' in Shanghai, how he encountered Grosvernor and tracked him to Spain. He revealed that the Assassin Norbert Clarke was actually Grosvernor, who had killed him earlier and posed as him. He also tells Cardona that Grosvernor was planning to use him as a conduit for the Koh-i-Noor and unleash its powers. Bolden asked Cardona to help him track down Grosvernor, in exchange for helping him to warn his cell, which he accepted.
Bolden and Cardona rode along with several Spanish revolutionaries and a while later, they come across Grosvernor, with the Assassins behind him.
黑色十字是位得力的自由奔跑者和能够攀爬伦敦以及中国的建筑物的登山者。He was also a skilled tactician allowing Thaddeus Gift to get to a phone to reveal his collaborators, and accounted for Yuri Dolinsky's superior swordfighting skills by cutting the tracks of the train prior to their duel on board which caused Dolinsky to fall and lose his advantage.
Black Cross was also highly skilled in unarmed combat besting many opponents in the crime syndicate the Green Gang such as the large Fiery Crow and holding his own against the skilled Flowery Flag. He was also exceptionally skilled in stealth constantly sneaking up on those he had to interrogate or execute.