One or both of the following special events can be used while the characters are exploring the @Ruins of Berez.
@Baba Lysaga has given a semblance of life to her hut using a magic gemstone stolen from the @Wizard of the Wines Vineyard. If the characters overstay their welcome, she commands the hut to animate and attack them. If this happens, read:
"The giant roots beneath the hut come to life and pull themselves up out of the mire. The hut and the roots lurch and groan, becoming a lumbering mass that cracks as it walks, crushing all in its path."
Baba Lysaga's Creeping Hut is a ponderous construct that heeds @Baba Lysaga's instructions and no one else's. It fights until destroyed or until the gemstone that animates it is removed or destroyed. Baba Lysaga does everything she can to keep the characters from obtaining the gemstone, without which the hut is incapacitated.
This event occurs as the characters travel north of Berez after leaving the ruins.
"You hear sounds of battle, but the fog has grown so thick that you can barely see more than sixty feet in any direction. Suddenly, the fog takes on the forms of soldiers on horseback charging across the field. They collide with armored pike-bearers wearing devil-horned helms. As each soldier falls in battle, it turns to fading mist. Hundreds more soldiers collide in a storm of screams and clashing metal."
Characters can move through this ghostly battlefield unscathed, and they can't harm the foggy forms around them. The soldiers aren't solid enough for the characters to discern emblems or insignia, but it's clear that both armies are human.
If the characters have not yet explored @Argynvostholt, add:
"You hear a thunderous roar, and seconds later a huge dragon made of silver mist glides overhead, dispersing enemy soldiers with each flap of its mighty wings. Its long, reptilian tail slices through the air above you as the dragon carves a swath through the fog, affording you a fleeting glimpse of a dark mansion overlooking the valley."
The dragon, like the soldiers, is a harmless phantom. The mansion that the characters see is @Argynvostholt.
One or both of the following special events can be used while the characters are exploring @Khazan's Tower.
If the characters blew up @Ez d'Avenir's wagon, activated the lightning sheath around the tower, or caused the tower to collapse, the sound of their handiwork echoes through the valley as far west as the @Village of Krezk and as far east as the @Town of Vallaki. The disturbance attracts the attention of a pack of @Werewolf, Wolf Forms, which arrives after 1 hour.
The werewolves haunt the @Svalich Woods (Northwest) west of @Khazan's Tower. They come running in wolf form, hoping to trap prey on the island by cutting off access to the causeway.
Leading the hunt is @Kiril Stoyanovich, a @Werewolf, Hybrid Form with 90 hit points. Accompanying him are six normal @Werewolf, Wolf Forms and nine @Wolfs. While in wolf form, the werewolves are indistinguishable from ordinary wolves. They either remain in wolf form or assume hybrid form.
The werewolves know that the tower has magical defenses, so they are cautious. Kiril tries to lure the characters outside for a final showdown, but pulls his pack into the woods if the characters start lobbing spells or making ranged attacks from the tower.
A captured werewolf can be forced to divulge the whereabouts of the children kidnapped by the pack. They are being held in a cave to the west (@Werewolf Den).
@Ez d'Avenir returns to @Khazan's Tower after confronting @Strahd von Zarovich in @Castle Ravenloft and barely escaping with her life. She arrives on the back of a @Riding Horse stolen from the @Vallaki Vistani Camp.
Ez hopes that the arsenal of weapons in her wagon will be enough to protect her from the vampire's wrath. If the characters blew up the wagon, she is understandably annoyed and retreats to the tower. (She knows the trick to bypassing the trap on the tower door.) If the tower has also been destroyed, she doesn't stick around unless the characters are clearly her best hope of survival.
Ez's altercation with Strahd has left her with only 30 hit points. She graciously accepts any healing the characters have to offer.
From this moment on, @Strahd von Zarovich gains a new goal: kill @Ez d'Avenir. Knowing that his Vistani spies might be conflicted at the thought of slaying one of their own, Strahd relies on the @Druids and the @Werewolf, Wolf Forms of the Svalich Woods, as well as @Human spies and @Vampire Spawn hidden in @Barovia's settlements, to help him find and kill Ez. If Strahd learns that she and the characters are working together, he invites the characters to @Castle Ravenloft, expecting that Ez will accompany them. The characters receive their invitation in the form of a letter delivered by one of Strahd's spies. If the characters open and read the letter, read:
"My friends,
Know that it is I who have brought you to this land, my home, and know that I alone can release you from it. I bid you dine at my castle so that we can meet in civilized surroundings. Your passage here will be a safe one. I await your arrival.
Your host, @Strahd von Zarovich"
If the characters head toward the castle, they have no threatening random encounters on the way.
One or both of the following special events can be used after the characters have rid the @Wizard of Wines Winery of its current menace.
After restoring the Martikovs to their rightful positions, the characters might ask them to deliver wine to the @Blue Water Inn, the @Vallaki Vistani Camp, or the burgomaster of the @Village of Krezk @Dmitri Krezkov. A grateful @Davian Martikov sets his sons to the task immediately. @Adrian Martikov brings the three remaining wine barrels up from the cellar and sets them on the wagon while @Elvir Martikov secures the horses. Adrian and Elvir make the delivery themselves, but they welcome the party's escort. If the characters don't volunteer for guard duty, @Davian Martikov suggests they go along with the wine wagon to ensure its safety.
If the characters escort the wagon, check for a random encounter once for each mile traveled. The wagon is also watched over by two @Swarm of Ravenses that swoop down to attack anything that threatens the wagon or the characters.
The characters can trade the six barrels of wine for a much-needed treasure in the possession of the Keepers of the Feather or the Vistani, or they can use it to buy their way into the walled @Village of Krezk.
If the characters leave the winery and return at a later time before dealing with Wintersplinter (see the Druid's Ritual section in the Special Events in the Amber Temple, Yester Hill, & the Werewolf Den lore article), the enormous @Tree Blight is sent from @Yester Hill to ravage the @Wizard of the Wines Vineyard and destroy the @Wizard of Wines Winery.
The characters arrive to find the grapevines trampled and the winery in ruins. Wintersplinter's tracks are clearly visible on the trail to the south. Characters who follow the tracks catch up with Wintersplinter as the blight slowly makes its way back to @Yester Hill.
The Martikovs narrowly escape the carnage and flee to the @Blue Water Inn in the @Town of Vallaki. @Davian Martikov is crushed by the loss of the winery, and morale in Vallaki sinks to an all-time low as word of the winery's destruction spreads through town.
Three days after Wintersplinter's attack, @Baba Lysaga dispatches the seven @Scarecrows from the @Ruins of Berez and orders them to take up positions in the @Wizard of the Wines Vineyard, to discourage the @Wereravens from returning. These scarecrows attack anyone who crosses the vineyard or approaches the ruined winery.