Signet-Blocking Serum

The blocking agent can appear in ordinary classroom mugs and other everyday drink containers, making it easy to disguise in assessment settings.

Lilith later supplies Violet with a clear vial containing the drink that reverses the serum's effects.

Bodhi gives Violet two small vials marked S and A, which she understands as serum and antidote.

Bodhi secretly gives Violet two vials marked S and A, which Violet understands as serum and antidote. She keeps them as a private contingency involving Xaden, not something she wants the wider squad to see.

Garrick also carries signet-blocking serum during the search, and Violet sends Xaden with him as part of a safety plan for an unwarded magical place.

The serum dulls both dragon communication and signets. When Violet reaches for her lightning under its effect, she feels only a weak tingle instead of usable power.

The serum's effect is reversible through a later waterskin from Grady. When Violet drinks it, the blanket over her dragon bonds lifts immediately and power rushes back into her veins, confirming that the blocking effect was temporary. The elixir is a new development that year, and dragons dislike it because they can still hear and sense their riders while the riders cannot answer normally.

The blocking agent can be administered through ordinary-looking drinks in assessment settings. Violet recognizes the classroom liquid by its smell and connects it to the earlier land-navigation dose before her squad avoids drinking it.

Violet describes the elixir to Xaden as a new solution that dulls connections to dragons and signets. She believes that if she can obtain a sample, she or Brennan may be able to determine an antidote.

For Xaden's venin risk, the serum is treated as a way to make him powerless if he is not himself. Xaden tells Violet to use it on him in that case because he would rather lose access to power than hurt her, though he does not want to willingly block his bond with Sgaeyl while he can still fight venin.

Violet keeps serum for an emergency involving Xaden, but she does not treat it as a complete answer if he truly turns against them. She tells Ridoc that no rider alive could stop Xaden at full power, so the larger strategy has to be keeping him on their side.

Violet later compares Leothan's bond-blocking shield to the serum used during RSC. The similarity is experiential: both create a disconnect that every part of her rebels against.

Grady gives riders water containing the blocking mixture during the land-navigation exercise. The dose makes the course more dangerous because it limits both their signets and their ability to communicate with their dragons.

During Violet's imprisonment, Varrish's side uses the serum as an ongoing restraint rather than a single interrogation tool. They repeatedly chain her into the chair and force the solution down her throat at least once a day, keeping her bond with Tairn fogged and preventing her from reaching her power even after mending sessions.

Lilith supplies Violet with a clear antidote vial after the torture. Once Violet drinks it, she can communicate clearly with Tairn again, confirming that the serum had isolated her from her dragon and power.

After Xaden knocks Jack Barlowe unconscious, Nolon uses a vial of serum on Jack. Violet concludes that Jack is likely the reason the serum was developed, and the use implies it can help contain him by cutting off signet or bond-related access and possibly limiting his venin feeding long enough for questioning.