"Hang on a moment," Micah says. "Oh darling, that's a huge data swap—"
She takes a moment to sort through the information she's receiving from Differential Calculus, the healed Ghost. The data looks promisingly revelatory on a first analysis: the Traveler is hurt by what the Witness has done to it, and all of the lost Ghosts have been trying to help it, in their way—seeking out dangerous places to get closer to the Traveler.
The instinct is sound. Revitalizing the connection between Ghost and Traveler helps both, although the scale of the Traveler is much greater than any single Ghost. There's still a long road ahead: if the Traveler even CAN be healed completely.
But there is a duty, held by Micah-10 and the Ghosts she shepherds, to do everything in their power to help. And they'd welcome your continuing assistance. "Keep up the good work," Micah-10 says. She has a bigger picture mission in mind: tackling the Witness's influence directly while she works to track other missing Ghosts.