Río comes to a bold conclusion after nearly dying, and Athena offers to help. Tosh is enlisted to keep tabs on Oxton. Diego hunts for the ferret but ends up against more than he bargained for.

ONCE EVERY 200 SESSIONS, TIME COLLAPSES… PAST, PRESENT & FUTURE UNITE AS ONE.

THE MOMENT OF TRUTH HAS ARRIVED.

JOIN THE RITUAL. ENTER THE ETERNAL NOW, ARE YOU READY TO FACE THE TRUTH?

The D'artagnans review their investigation with the captain. Tosh and Río set out to eliminate the ferret but the ferret has other plans. Athena and Diego apprehend Oxton. The owner of the ferret has a visceral reaction to seeing Río and she falls unconscious.

The D'artagnans continue their investigation aboard the airship. Athena questions Rorrik and brings up the Thunderforce™. The group convenes with each other and narrows their list of suspects. Río and Diego smooth things over with Corrina, who has information to share about Diego's father. Tosh and Athena concoct a plan to sus out Oxton. The birdcage does not contain a bird.

The D'artagnans split up to get a read on the crew of the airship to figure out who is sharing information with The Honest Men. Athena touches base with Captain Valtiere, Diego makes himself useful with Bram, and Tosh gets familiar with Corrina. Río has drinks with Benedict and discovers a royal secret. Athena finds out more about Alabaster and Tosh snoops around Corrina's quarters. The plot thickens...

Diego returns to the ruins of Aelin's workshop to say goodbye, and he and Sylvia make plans for an arm attachment for Tosh. Tosh secures passage on a ship departing Ostium in a few weeks. The D'artagnans board The Sapphire and reunite with Benedict. Someone on board is leaking information to the Honest Men, and the D'artagnans are tasked to find out who.

Ara and Río talk about Egnil's legacy. Emboldened, Río reaches out to Apollo. Athena speaks with Ara and gets a vision of her past. Tosh checks in with his sister.

The D'artagnans continue to fight their way through the underbelly of the cathedral to rescue Ara. Diego isn't messing around. Tosh must deal with repercussions from Litu. The group reconvenes at a tavern.

The cathedral crawl continues. The D'artagnans learn more about who these people are worshipping and what they are trying to do. Several attempts are made on the keys of the priest. Diego's true form is revealed and Tosh drinks the communion of another diety.

Diego seeks relationship advice from Tosh. Athena and Río talk about her surprise gift. The D'artagnans begin a crawl through the heart of the cathedral in an attempt to find Ara and rescue Jacob.