"Hell, Ain't really hard to figure out what the spirit they call the Whistler is all about. Now, it be hard to figure out what the figure is in life.

Ya see, he ain't got no head to speak of, nor a pair lips neither to whistle with.

His neck ends in a jagged stump that still flex as it should we he dun whistle.

The clothes he wears ain't fancy neither. No flash, no frills, no heraldry.

I reckon he was a crofter of some sort that whistled as he worked, given the ghost's calloused hands

Some poor fella that fell victim to an industrial accident that weren't no accident, you hear?

The Guilds 'round these parts used to be cut-throat and them coffers stained with blood.

The Whistler, he and the restless dead he gathers to him, well guess who they target. I suppose ya can figure the rest out."

-Fossor Carvilius Graeme

The Whistler

Medium undead, chaotic evil

Armor Class 13

Hit Points 78 (12d8 + 24)

Speed 0ft

Flight 40ft (hover)

Str 7 Dex 17 Con 14 Int 14 Wis 11 Cha 18

Skills: Performance +7

Condition Immunities Charmed, Exhaustion, Frightened, Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained

Damage Immunities Necrotic, Poison, Thunder

Damage Resistances Acid, Cold, Fire, Lightningr; Bludgeoning, Piercing, And Slashing From Nonmagical Weapons

Senses darksight 60ft, passive Perception 11

Languages common

Challenge 7 (2900 XP)

Ethereal Sight:

The ghost can see 60 ft. into the Ethereal Plane when it is on the Material Plane, and vice versa.

Incorporeal Movement:

The ghost can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

Innate Spellcasting:

The Whister's innate spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks). It can innately cast the following spells, requiring no material components:

3/day each: Thunderwave

1/day each: Shatter

Actions

Multiattack.

he Whistler makes one Deathly Touch attack and uses its Whistle action, if able.

Deathly Touch:

Melee Weapon Attack: +7 to hit, reach 5ft., one target. Hit: 18(4d6+4) necrotic damage.

Etherealness:

The ghost enters the Ethereal Plane from the Material Plane, or vice versa. It is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet it can't affect or be affected by anything on the other plane.

Whistle.

The Whistler whistles at a creature it can see within 60ft. If the creature can hear and has an Intelligence of 3 or greater, it must succeed on a DC 15 Charisma save or use its reaction to move 30ft closer to the ghost. If it fails this save by 5 or more, it is also charmed until the end of its next turn and will continue to move closer to the ghost.

Bonus Actions

Instill Vigor (3/day).

The Whistler can use its bonus action to give an undead creature or creature charmed that can hear the Whistler and is within 60ft a Bardic Inspiration die with a value of d8.