Given the circumstances that had found her permanently posed in granite, Chrysalis hardly expected to find herself freed from that state by Starlight Glimmer herself - much less asked for help by her number-one nemesis.
But for Starlight Glimmer and Spike, all other alternatives are exhausted. Something is sickening the changelings: A disease which spreads by no clear vector, no observable cause, and has no known history in their species. If any information or hope of a cure exists, it may very well reside with the mind of their former queen.
But coercing Chrysalis to cooperate for the sake of those she views as traitors will be hard enough, and even if she does, what will the consequences of her information be?
An entry in Imposing Sovereigns III, using the prompt Chrysalis / Perseverance.
Cover art made by Comma Typer, who deserves all credit.