Draetha is the 6-font companion to Biblia and Biblia Serif. But it is definitely designed to be used with Biblia Serif for book design and production. It is a nearly monoline sans with a clean style which contrast beautifully with Biblia serif. The Black versions push monoline to the extreme of boldness. It has the same font metrics as Biblia and Biblia Serif. The only compromise is that Ultra is too extreme to be able to provide small caps or oldstyle figures. It is designed with text spacing, to work in text with Biblia and Biblia Serif. For heads and subheads, you will need to adjust the tracking. But it tracks well.