Cause and Effect

The Silver Skulls Chapter of Space Marines place great value on the visions of their psykers, and follow their guidance in all matters. When Chapter Master Argentius seeks advice on whether to promote battle-brother Gileas Ur'ten to Captain of the Eighth Company, the Prognosticators are unable to provide a clear answer. While Gileas is an extremely capable warrior, he is also prone to fits of temper. Will his current mission against the eldar prove beyond doubt his capacity to lead?

Read it because
The Silver Skulls' reliance on their psychic Prognosticators is explored. When the Chapter refuses to act without a clear steer from these warrior-mystics, what happens when their visions are clouded and the future unclear? And could one warrior make a difference...?