Last week on Arrow, Oliver Queen made a major gamble in order to learn more information about Ricardo Diaz's plans -- and it's about to pay off. In this CBR-exclusive clip from "Crossing Lines," the next episode, Brick reveals another major piece in the Longbow Hunters' puzzle.

The clip opens in the prison cafeteria, as Oliver and his "sidekick" Stanley grab lunch. When Oliver saw Brick and his compatriots Bronze Tiger and Derek Sampson, he made a beeline for them and demanded that they uphold their end of the bargain. Though Brick wasn't exactly thrilled with Oliver's methods, he obliged.

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While Brick couldn't reveal Diaz's exact location, he admitted that he knows Diaz's informant, who goes by "The Demon." According to Brick, the Demon arranged the hit on Oliver that went down in the season premiere. Since Oliver got rid of Corrections Officer Peter Yorke, per their agreement, Brick offered to arrange a meeting for him.

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At the time of writing, the Demon's true identity remains unknown. However, he promises to be an important player, as the season's fifth episode is titled "The Demon."

Airing Mondays at 8 pm ET/PT on The CW, Arrow stars Stephen Amell as Oliver Queen, David Ramsey as John Diggle, Emily Bett Rickards as Felicity Smoak, Rick Gonzalez as Wild Dog, Echo Kellum as Mr. Terrific, Juliana Harkavy as Black Canary, Colton Haynes as Arsenal, Kirk Acevedo as Diaz, and Katie Cassidy as Black Siren.