Ma'ar and Carissa's tiny ship travels through the Void.
They trade off navigation duties. For the most part navigation isn't hard work, it involves a lot of sitting and watching the magic-sensors, and so Ma'ar ends up taking on more of it; his kind of magic work is more amenable to multitasking than Carissa's. Ma'ar also mostly takes charge of updating the 'hyperspace' maps on Mhalir's computer, since Carissa can productively use her free time to work on enchanting magic items.
They have the alt-detecting item that the human Aroden figured out for Mhalir on his earlier explorations. It has to be set to a much less sensitive threshold for the Void-ship, since the power source at hand is far lesser, but human Aroden thought it should still alert them at close range.
It fails to trigger alerts for any of the first half-dozen worlds they find. All of which, from a brief glance, don't contain any interesting magical signatures, and so they move on.
Ma'ar, at this point in his life, is fairly experienced with finding comfortable working routines with arbitrary people, and so he and Carissa fall into a routine which works fine. (For him, at least, and for her as well judging by the brief glances he gets of her mind.) They mostly just talk at mealtimes, and find enough potential topics to avoid awkward silences.
He and Carissa work well together, Ma'ar thinks. They can communicate without friction, and neither of them needs too much, and...things are fine.
Definitely fine.