Tears of Lys

Tears of Lys is a rare and costly poison, described as clear and sweet as water, that leaves no detectable trace in its victim. Its existence and properties are revealed through the investigation into the death of Jon Arryn, the former Hand of the King, and it becomes a central piece of evidence in the growing conflict between the Starks and the Lannisters.

Nature and Properties

The poison is first described by Varys, the master of whisperers, who tells Eddard Stark that it is called "the tears of Lys." He emphasizes its rarity and cost, and its most insidious quality: it is "clear and sweet as water, and it leaves no trace" . This makes it an ideal murder weapon for a high-profile target, as a natural death can be easily feigned. Varys reveals that he had begged Jon Arryn to use a food taster, but Arryn refused, considering such a precaution beneath a man of honor .

Use in the Conspiracy

The poison is later discussed in the small council as a potential means to assassinate Daenerys Targaryen. When the council debates how to eliminate the pregnant princess, Varys suggests using the tears of Lys, noting that Khal Drogo need never know it was not a natural death . Grand Maester Pycelle reacts with suspicion at the mention of the poison, his sleepy eyes flicking open as he squints at the eunuch . This moment links the poison directly to the Lannister-aligned faction and to the broader scheme of eliminating Targaryen claimants.

Significance in the Narrative

The tears of Lys serves as the concrete, trace-less mechanism by which the Lannisters eliminate a key political opponent. Its use in Jon Arryn's murder sets the entire plot in motion, as his death prompts King Robert to travel north to offer Eddard Stark the position of Hand, and it fuels Catelyn Stark's suspicion of the Lannisters. The poison's undetectable nature makes it a perfect tool for a conspiracy that relies on secrecy and plausible deniability, and its mention in the council meeting underscores the ruthlessness of the regime that has taken power in King's Landing.