Story/Arcs/Grand/2

Aboleth: [name TBD] (levels 10-14)
An aboleth receives word of a powerful disturbance coming from a thin barrier to an unknown rift. Its curiosity piqued, it probes the rift exhaustively for information, and subsequently tries to claim it. When it finds information revealing it to be the plane of a god *, the aboleth switches gears, pouring all its energy into a costly game of vengeance against its ancient enemy.

Featured tracks:

 * Placed: The Elder Halls, Blackstone Scales, Arise Hero, [more TBD]
 * Unplaced:

Reminders about the final encounter:

 * Emil's Halloween aboleth was taken down in two rounds and before it could ever strike; in terms of hp, it's fairly squishy to be a Grand Arc villain.
 * Give the aboleth the minions, connections, and unsettling amount of control befitting of an ancient being; it should be a difficult encounter
 * The aboleth should not fight alone
 * The aboleth should have non-combat mechanics which protect it during combat (i.e., environmental barriers)
 * You can also just, make the aboleth stronger
 * increase stats
 * give additional abilities
 * give it more horrifying traits - make it  interesting  as a creature and as the BBEG
 * don't forget  lair actions 
 * make it an interesting  character ; the aboleth is an intelligent being, not a feral beast.

The plot:

 * *Discovery: this is actually Arxsec's god plane, Arxsec just hasn't presented himself yet
 * [during vengeance, TBD]: Nexus sustains heavy physical damage - ♫ The Elder Halls ♫
 * Entities within the dungeons break free
 * Efforts are poured into clearing out the dungeons, which are now left gaping open

-> Level-up: 12

 * The aboleth plane-shifts into one of Prolu's dungeons - ♫ [track TBD] ♫
 * Quickly establishes stronghold and works tirelessly to secure and fortify it as a lair
 * Path to the aboleth's lair - ♫ Blackstone Scales ♫
 * Slow (but interesting and worthwhile grind) into aboleth's lair, knocking out key minions
 * The players make strongholds of their own, reclaiming territory a little at a time
 * Occasional pushes back, from the aboleth's forces
 * The aboleth's lair
 * Face the aboleth

-> Level-up: 14

 * Recognition - ♫ Arise Hero ♫