In the Dark is episode 3 of season 1 of the television show Angel. Written by Doug Petrie and directed by Bruce Seth Green, it was originally broadcast on October 19, 1999 on the WB network. In "In the Dark" James Marsters guest stars as Spike and Seth Green reprises his role as Oz, both arriving in L.A. immediately following events of the Buffy the Vampire Slayer episode "The Harsh Light of Day". Oz brings Angel a magical ring that renders a vampire invincible, which Angel hides. Spike hires vampire Marcus to torture Angel into divulging the ring's location, but when Angel doesn't break, Spike negotiates a hostage exchange with Cordelia and Doyle. During the exchange, Marcus nabs the ring and disappears. Angel tracks and dusts Marcus, then wears the Gem of Amarra himself for the remainder of the day. Finally - deciding the ring only simulates the redemption he seeks and that possessing it would inevitably distance him from the suffering of the innocent he has sworn to protect - Angel crushes the Gem of Amarra to powder.