They reach out, grasping onto his mana with their own. A rush of adoration-affection-happiness follows the feel of the bond clicking into place, for his words. Wanderer loves easily and without reserve, and the promise to see them free is more than enough to prompt it.
Through the bond he should be able to feel the reservoir of power within the Spear - deep wells of Water and Air - and through it, the bond with the City.
The detail he gets is not nearly so much as Wanderer does, but he should be able to feel in some detail any large movements which stir air or water. He cannot sense the breath of his two companions, but he can feel it when Ilek makes his way to the window to look out, if he pays attention to the sense.
Also, he can feel the veins within the City, if he focuses. Winding through every part of it like a great circulatory system, leaving from and returning to the reservoirs deep beneath the tower, in the lowest levels of the vaults. He can't do anything with them yet, not knowing how, but he can tell they are there.