"Guardian. If you are listening to this, then the deed is done. I trust my sacrifice was not in vain."
Rasputin speaks from beyond the grave in a pre-recorded message, delivering a final warning:
"The Neptunian city in Osiris's visions is real. I do not know its exact location, but it is home to 'the Veil,' an object of immense paracausal power. One that is linked to the Traveler."
He imparts this knowledge to use against the Witness in the hopes it may prevent the second Collapse.
In closing, Rasputin wishes you well and imparts one final truth:
"Humanity has no more need of a Warmind. Not when you have each other."