Silverthorn Anti-Venom

Silverthorn Anti-Venom is a remedy used in the Kingdom of the Isles to counteract Silverthorn poisoning. It appears in Betrayal at Krondor.

History
Ten years ago, Princess Anita conDoin was poisoned by a Silverthorn-treated arrow. Using Silverthorn collected at great risk by Prince Arutha, Father Nathan of Krondor developed an anti-venom to be taken internally, saving the Princess's life. Later, the anti-venom was further developed for additional use as a treatment for armor, providing essential protection for soldiers facing Silverthorn-poisoned blades.

Description
Silverthorn Anti-Venom is carried in grape-like glass bulbs fanning out from a delicate central vein. Each dose can neutralize twice the amount of poison, though users must be cautious not to cut themselves when breaking the glass. A thin coating is smeared on armor before battle to neutralize Silverthorn-treated weapons; it can also be consumed to cure Silverthorn poisoning and poured into poisoned water to make it drinkable again.

Literature
The effectiveness of Silverthorn Anti-Venom against Silverthorn poison is mentioned in an addendum Chapel's Rmur n Whepuns, possibly dating the addendum to under ten years ago. The anti-venom's history and uses are detailed in a book on poisons, which can be read in The Vaults.

Properties

 * Stackable up to 12. Each cluster of bulbs takes up one Inventory space.
 * One dose used on armor provides resistance to extra damage from Silverthorn-treated blades for the duration of one battle. This resistance may also work against other poisons, such as that caused by the Silver Spider tool or an attacking Scorpion.
 * If a character is struck by a poisoned weapon during battle, consuming a dose of the anti-venom neutralizes the poison, preventing the additional Health/Stamina loss that would otherwise occur each turn. The antidote can also be used after battle.
 * A poisoned well can be rendered potable with a dose of the anti-venom.
 * The anti-venom cannot make poisoned Rations edible again, but a dose can cure a party member who has been poisoned by eating tainted food.

Storyline
A side quest in the Dimwood can be completed in Chapters 1, 2, or 3 if the party has one dose of Silverthorn Anti-Venom. (If they are carrying multiple doses when completing the quest, it will all be used.)

Trivia

 * The poisoning of Anita conDoin and the search for a cure are detailed in the novel Silverthorn.