Mysteries of the Mists (zine) by Colin Le Sueur

10 new monsters to challenge your players with, 4 new spells to encourage greater creativity in play, and 16 new magic items to get characters into and out of trouble

Three horrifying monsters from my recent 5e horror module The Howling Caverns:

• The Gharblest (CR 3): A terrifying mix of the ruthless ferocity of a goblin and the raw power of a Barghest
• Qalupalik (CR 3): Slinking from the frozen sea to drag unsuspecting prey into the endless abyss
• Wereowl (CR 1): Swift and merciless but easily distracted by shiny things

And seven appearing in the follow-up Colossus Wake:

• Chittering mimic (CR 4): A terrifyingly nimble mimic variant that unleashes a stream of disorienting gibberish
• Gelatinous pond (CR 4): Rarer and deadlier than their cuboid relations, able to hide in plain sight for years before striking
• The Scarlet Jack (CR 21): The manifestation of a broken vow, heartless and unstoppable
  
• Sendrak (CR 10): Nightmare made flesh in the twisted form of a dragon
• Silvertongue (CR 5): Charming half-devil specialising in intrigue and subterfuge
• Traitors Heart (CR 4): A black heart twisted by betrayal refuses to die; the heartbeat of death approaches
• Violet pudding (CR 4): Magical corruption taken physical form, spreads chaos and death

Four versatile new spells:

• Song of Steel (2nd)
• Speak with Stone (1st)
• Temper Weapon (2nd)
• Words Take Flight (1st)

16 remarkable magic items:

Blade of the Norns: A sickle with the power to snip the threads of fate
Coronal of Insight: Crown of an eldritch being of nightmare bringing with it the curse of knowledge
Egils Fury: Enchanted longbow imbued with frost, fire, and lightning
The Elder Horn: Summon an ally or broadcast your intentions to the world
The Eye of Dawn: A morning star forged by the Sun god, destined to burn the undead
Formless Clay: Shape a small ally to fight by your side
Hardened Heart: Once-living heart twisted and corrupted by hatred hardens your own in turn
Indomitable Greataxe: Conquer the demon fear and overcome all odds
Mirror Shield: Deflect a magical force and reflect it upon your foe
Radiant Sphere: Dispel the darkness in a crash of brilliance
Raven Dirk: Vanish in a flurry of black feathers and reappear to deliver a fatal strike
The Scarlet Jack: A cursed coin and manifestation of the cost of a broken vow
The Scintillating Wren: Summon an enchanted bird to act as guide and familiar
Truemetal Circlet: Bestows ancient magical knowledge and power long thought lost
Volundrs Chain: God-forged iron chain said to summon a soldier of flame
Wings of Steel: Glide on the winds with these exquisite dwarven bracers

All of what you'll find here is also in The Howling Caverns and Colossus Wake; this file is intended for those interested in just the monsters and spells.