Question: How did the three contact the Black Hand?
About the article "Assassination of Archduke Franz Ferdinand of Austria", section "Eve of the attacks".

Candidate passages:
Shaka is often said to have been dissatisfied with the long throwing "assegai", and credited with introducing a new variant of the weapon: the "iklwa", a short stabbing spear with a long, sword-like spearhead.
Though Shaka probably did not invent the iklwa, according to Zulu scholar John Laband, the leader did insist that his warriors train with the weapon, which gave them a "terrifying advantage over opponents who clung to the traditional practice of throwing their spears and avoiding hand-to-hand conflict".
The throwing spear was not discarded but used as an initial missile weapon before close contact with the enemy, when the shorter stabbing spear was used in hand to hand combat.
Shaka is also supposed to have introduced a larger, heavier shield made of cowhide and to have taught each warrior how to use the shield's left side to hook the enemy's shield to the right, exposing his ribs for a fatal spear stab.
In Shaka's time, these cowhide shields were supplied by the king, and remained the king's property.
Different colored shields distinguished different amabutho within Shaka's army.
Some had black shields, others used white shields with black spots, some had white shields with brown spots, while others used pure brown or white shields. 
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The game is set in 2021.
Ten years prior to the opening of the game, 3,000 blackbirds fell out of the sky in Beebe, Arkansas.
As scientists proved at a loss to explain how or why the birds had died, similar phenomenon began to occur all over the world.
People began to panic, fearing Armageddon was at hand.
Several months later the "Black" came.
A thick black oil washed in to coastlines, turning anyone who came into contact with it into zombie-like creatures whose goal is to drag the living down into the Black.
The game follows an unnamed protagonist and a woman named Charlotte as they try to identify the origin of the Black. 
Here is a list with a few examples on how ACE can be used:  group brainstorming  source code development (XP)  collective note-taking  Write texts together (e-mails, letters, journals, etc.)
educational purposes The last point reveals some more potential for cooperative editing systems: Groups of two to three students can write essays together.
On the one hand, they teach each other how to use the written language, and on the other hand, they can have fun together using a hands-on application on the computer, thus losing fear of contact with the computer, which is essential in today's education. 
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