Warframe’s Chains of Harrow Quest is the newest Quest introduced to the game as of the Chains of Harrow Update. It is required to be finished as it is the only way of obtaining the Harrow Warframe blueprint.
The pre-requisites of this Quest is to have completed Second Dream and have the Void node Mott unlocked and completed.
After meeting all the pre-requisites, players can start the quest from their codex.
Mission 1 – Investigate the Message
The first quest will bring to yo Pacific, Earth to investigate the strange message you received. There you will find that the red veil has slaughtered numerous Steel Meridians and you have to help a red veil, Palladino then met here at Iron Wake.
Mission 2 – Meet Palladino at Iron Wake
You’ll be going to Iron Wake, Earth to meet Palladino. She sends you to retrieve a relic.
Mission 3 – Find Rell’s Relic
You’ll be going to Hydra, Pluto to find Rell’s Relic. You find Rell’s relic and he chases you with shadows, forcing you to extract.
Mission 4 – Capture Rell’s Manifestions
This mission, you’ll be sent to the Derelict in hopes of capturing Rell’s manifestations but you’ll need to bring a Kinetic Siphon Trap that can be bought from Simiarlis. I would recommend bringing at least ~15.
Mission 5 – Capture Rell’s Manifestions
You’re still capturing those manifestations and you’ll be going to Stephano, Uranus next.
Mission 6 – Capture Rell’s Manifestions
Here have some more capturing missions but this time at the newly revamped earth tile set at Everest, Earth.
Mission 7 – Enter the Temple
Finally, you’ll confront Rell’s Vessel at Tiwaz, Void. Where you have to free Rell in operator mode by breaking his chains while dodging projectiles that are faster than you and defy cover. Alongside fighting Red Veil operators by kiting them throughout the map.
Finishing the quest rewards the player the Harrow Warframe Blueprint, the remaining components can be obtained from Defection, Grineer Fortress Spy and Void Fissures mission types.