As the heroes made ready to meet with the Council of Waterdeep for the last time, the ever-present background noise from the Draakhorn shifted and became a clear, ominous blast, heralding the impending doom of all who heard it.
The final council was held in the palace gardens so that the representative of the giants, Harshnag the Grim, could attend in relative comfort. Harshnag, a good-aligned frost giant who had helped Waterdeep’s leaders in the past, reported that the Cult had recruited a number of trolls and ogres, as well as some hill giants, all of whom were clearly too stupid and/or ignorant to realize they were on the wrong side.
Lord Neverember and Taern Hornblade both complained about the suffering their cities had endured due to a lack of draconic support, although no one quite believed Hornblade, as Silverymoon had plenty of other defenses, including a mythal, to protect it.
The renowned elf ranger Cylanestriel was brought before the council to recount her harrowing experience at the Well of Dragons. She was the sole survivor of an adventuring party that had attempted to infiltrate the Cult’s lair. She witnessed the creation of the Temple of Tiamat within the well, conjured up out of the mud and bones strewn around the caldera and infused with infernal power. She spoke of access tunnels in the sides of the volcano, leading into a network of lava tubes that the Cult had long ago worked into a stronghold. The slopes of the volcano were swarming with troops, and dragons patrolled the skies. The land for a hundred miles all around had been scoured.
Lastly, the leaders of the various factions represented at the council voted to support the heroes in their efforts to fight the Cult. Although it was a close thing for some, particularly Lord Neverember and Ambassador Brawnanvil, all present offered their full support for the fight.
Lady Laeral used her formidable magic to conjure up an illusory map of the Well of Dragons and the vicinity, and the alliance proceeded to plan their attack. The soldiers and mercenaries of the Lords’ Alliance, along with the agents of the Emerald Enclave and the Order of the Gauntlet, would take on the bulk of the Cult’s ground forces. The mages of the Arcane Brotherhood would work to counter the actions of any rebel Red Wizards on the battlefield, while the mages and spies of the Harpers would focus on sabotage and intelligence-gathering, as well as relaying messages between the various allied units. Lastly, the metallic dragons and the giants aboard Skyreach Castle would engage the chromatic dragons in the air.
The heroes, meanwhile, would take a small force (consisting of Lords’ Alliance soldiers, a dwarven priest from the Order of the Gauntlet, a Harper spy, some elven scouts from the Emerald Enclave, and two Zhent thugs posing as Roscoe’s bodyguards) and infiltrate the tunnels beneath the well in order to stop Severin from completing the ritual that would bring Tiamat to Faerûn. If they came across the Draakhorn in the process, they were to put a stop to its noise as well.
After months of preparation and marching, the alliances’ forces were arrayed on the battlefield. On the eve of battle, Keo communed with nature in order to locate the tunnel entrances on the mountainside. Based on intelligence reports, he knew which ones were heavily used by the cult already. He located one on the south side of the mountain that hadn’t come up in the reports. The heroes decided to check it out.
The next day, as the battle commenced, Keo turned himself and his allies into clouds of mist, and together they sped up the southern slopes of the mountain until they found the tunnel entrance he’d sensed. There didn’t appear to be any recent activity here: no path or even any tracks. Only bats inhabited the cave. After shedding their cloud forms, the heroes and their followers proceeded inside, with the stealthy Roscoe leading the way.
At length, the group came to an intersection. It appeared to have been blocked at one point, but something had cleared most of the rubble away, except for a shallow wall still blocking the eastern corridor. Roscoe pushed on down the straight and came out into a sinkhole filled with dragon bones. He could see dragons of all colors battling in the skies far above, but he could see nothing of what else lay in the caldera, as the pit was a good 30 feet deep.
Reporting back to the others, they decided not to risk exposure in the caldera and dug out the side passage. This opened onto a disused corridor that led to several chambers and intersections lit by lamps and torches. Roscoe scouted ahead, finding several luxuriously decorated rooms that appeared to be where the rebel Red Wizards resided. He also found a large chamber containing several guard drakes fighting over hunks of meat that were best left unidentified.
The group pushed on through the Red Wizards’ rooms and came to an intersection along a wide, curving corridor. They could hear a patrol moving about and hid out of view as it went past. Shortly after, some cultists came down from the left and went into nearby chambers and brought out a bunch of prisoners. As they hauled them back up the way they’d came, the heroes decided it was time to act.
Charging out into the corridor, the heroes laid into the cultists. A few survived long enough to yell for reinforcements. One of Roscoe’s bodyguards accidentally shot one of the prisoners in the process. After all the reinforcements had been dealt with, the heroes ushered the freed prisoners back the way they’d came into the disused tunnel.
There, the heroes and their squad paused to bind their wounds and catch their breath before heading back into the tunnels once more …