The Rock - The Rock at Present: The ruins of Caliban are located in the Cadian Sector, to the galactic north of the Eye of Terror. It was from there that the reconstruction of The Rock began.The Dark Angels drilled deep into the old bedrock and rebuilt the ruins into a vast new complex with advanced Imperial technology worthy of a Chapter of Astartes. The fortress-monastery is known officially as Angelicasta (the Tower of Angels) but is more commonly referred to as "The Rock" just like its ancient predecessor Aldurukh, though this term is more properly applied to the dead asteroid that is all that remains of lost Caliban.Although only a fraction of what was once Caliban, The Rock is larger than even the heaviest class of starship, and it bears formidable firepower. The sheer sides of its mass are studded with gun turrets, Lance batteries, torpedo tubes, observation blisters and communications relays. Its cavernous docking bays can accomodate many hundreds of smaller craft -- including Thunderhawk gunships, Nephilim Jetfighters and even Escort frigates.Atop The Rock rises Angelicasta -- the Tower of Angels -- the ruined ancient fortress-monastery of The Order within which the Lion once fought the Arch-Betrayer. Even to this day, the tower remains undisturbed and eerily silent, protected by the same gravitic force fields that shielded it during the destruction of Caliban. None know what secrets lie forgotten within its dark halls, for even the Dark Angels themselves dare not set foot upon its hallowed ground, and never shall, until the Lion walks amongst them once more.No effort was made to rebuild the ruined Tower of Angels atop The Rock, and even now it remains undisturbed and eerily silent, protected from the cold depths of space by the same force fields that shrouded it from the destruction of Caliban. Although the Dark Angels took the barren remnants of their homeworld as a base, they have never attempted to rebuild the wreckage of the ancient fortress-monastery above. Standing proud amongst the desolate rubble however, the Dark Angels did find some elements of their old fortress citadel that withstood the collision of unstoppable force with the impenetrable shield.Amidst the debris there stood statues -- carved figures from a past age, old even for Caliban. Those stone eyes had seen all of the tragedies that had befallen the Emperor's I Legion and they now glowed with mysterious power, imbued with the energy released on that fateful day. The Stone Guardians, or Ten Brothers of the Order as they were known, were taken below into The Rock and locked in stasis displays deep in the Reclusiam for years.It was not until the desperation of the Vendetta Campaign that the Dark Angels at last felt compelled to unleash their arcane power upon the battlefield. These statues are now mounted upon the chassis of a Land Speeder Vengeance. These strange mobile reliquaries, known as Ravenwing Darkshrouds, ripple outward with strange energy that creates an otherwordly veil of eldritch power, serving to partially obscure and protect the bikes and light vehicles of the Ravenwing Company as they streak towards their foes.Although attempts have been made to mask it, an unusual energy signature emanates outwards from The Rock, portending of some great power hidden within. Beneath the shattered ruins, many dark secrets lay cloistered from sight, and the deeper into The Rock's labyrinth of dungeons one goes, the closer one comes to the truth of the Dark Angels -- even truths they themselves do not yet comprehend.The warrens beneath The Rock are where the Dark Angels bring their Fallen Angels brethren to be redeemed by their Interrogator-Chaplains. It is believed by the Inquisition to hold many other secrets of critical importance to the Imperium. Only when a Dark Angel reaches the rank of Master (Company Captain) does he truly learn all the secrets of the Dark Angels, but one secret was known only to the Supreme Grand Master, the Master of the Chapter: the Fallen Angels' leader, the Chaos Champion Luther, was not only still alive, but imprisoned within the deepest, most secure cavern of The Rock. He is incurably insane, and has thwarted the attempts of every Supreme Grand Master to make him repent to date. Luther simply rants and raves that he has no need of confession or repentance, for one day Lion El'Jonson will return and forgive him for his sins against the Emperor.Near the heart of The Rock lies a single cell. It is deep in the bowels of the asteroid base, where only the Watchers in the Dark and the Supreme Grand Master of the Chapter are allowed to venture. There, past locked gates that are shielded by dozens of feet of adamantine plating, is an oubliette. Its walls are inscribed with the most potent runes of warding known to Men, and they have been inscribed to keep creatures out, but also to keep something within. There, sustained in life for ten thousand standard years by a powerful stasis field, languishes the broken man who was once Luther.Luther's cell can only by reached by the Supreme Grand Master of the Chapter, who possesses the ancient Power Sword and mark of his office known as the Sword of Secrets. Fitting the blade into a cleft in the wall unlocks the iron gate leading to a dark tunnel and the rune-protected cell in which the Arch-Heretic Luther is imprisoned.For nearly 10,000 standard years, the Dark Angels have kept the secret of the disastrous events that took place on Caliban at the end of the Horus Heresy. They will never reveal the truth to anyone outside their Chapter, for they could not bear for others to know their terrible shame. And all the while, deep within The Rock, his continued existence known only to the Watchers in the Dark and the Chapter's Supreme Grand Master, the Arch-traitor Luther raved on -- speaking of what is to come or emitting senseless shrieks of despair.At times, his voice assumed a grating, inhuman quality and it told cunning lies or spoke words of such utter despair that to hear them was to wish for death. It was the rare moments of lucidity, when Luther begs for his own end, that are, perhaps, the hardest to endure -- although each and every Supreme Grand Master has done so. Down the ages, the Supreme Grand Masters have had some success in using Luther as an oracle.Although his Warp-contaminated and deranged mind often wanders or attempts to deceive, during moments of lucidity the Luther-thing spoke of events that will be, or might be, or dropped hints at what was hidden and where. Since the Fall of Caliban, each Supreme Grand Master has, in turn, taken the long, dark walk down to the heavily psi-warded cell. Each tried to extract a confession from the Archheretic, each tried to penetrate the madness that clouded his mind; none succeeded.The thing that was, and may still be, Luther divulged many secrets -- from the names and locations of members of the Fallen; to the whereabouts of relics from the I Legion secreted in the underworks beneath the old fortress-monastery. Mostly, however, all that was gotten out of Luther were mad ravings -- over and over he repeated that he had no need of repentance, for one day Lion El-Jonson would return and absolve him of his sins, and he claimed that day is near and that he can already feel that the Lion lies close at hand. Yet the Supreme Grand Masters still hoped to gain wisdom from this Dark Oracle, hoping to hear Luther recant, so that he might be, at last, released from the torments of life.Yet even the highest-ranking Dark Angels do not know everything, although they believe that they do...Buried yet deeper within The Rock, hidden in its innermost chamber, is the final, greatest secret of the Dark Angels and the Unforgiven. It remains unknown to the Inquisition or the Inner Circle of the Chapter. Only one person in the galaxy knows the full truth -- the Emperor of Mankind. Even in his living death upon the Golden Throne, even though the sunken orbits of his skull no longer have eyes, the Emperor still sees much.Hidden inside a secluded chamber at the heart of what was once the planet of Caliban, unreachable by all save the cryptic Watchers in the Dark, the Primarch Lion El'Jonson lies sleeping. There he slumbers, his wounds long-healed, waiting for that time when he will be needed again, when the clarion call of battle sounds for the last time, summoning him once again to defend the Imperium of Man against its many enemies.During his duel with Luther on Caliban, Lion El'Jonson suffered a severe psychic blow which left him mortally wounded. He was then pulled into the Warp and lost as the Dark Angels of that time believed. Yet what they did not know was that Jonson emerged from the Warp not long after on The Rock, his own abilities as a Primarch having proven to be enough of a defence to prevent the Ruinous Powers from seizing him, though he had lapsed into a coma.Once Luther was taken prisoner by the Dark Angels, the comatose form of Jonson was also taken into the deepest chamber of the Rock and placed into stasis to keep him alive. It was the mysterious Watchers in the Dark, their purposes always their own, who led the wounded Primarch to his rest deep within the heart of the fortress.Yet some amongst the Unforgiven believe the Lion will eventually return for one final Crusade intended to lead the Dark Angels to their greatest victory for Mankind and finally bring justice to the remaining Fallen Angels. Others believe that the Lion will only return when the End Times come and the Imperium stands at the brink of destruction. For these believers, Jonson will reappear from the Immaterium, forgive the sins of the Fallen and reunite them with the rest of the Unforgiven as they prepare to defend Mankind one final time. Little do they realise that their Primarch rests literally beneath their feet.