from any guild shop.Appearance: Pretty much the same as the other two available in the Shops.
Usage text: You read the spell, memorizing the words. This incantation will allow you to protect your creatures, masking them from view.
Usage: Like the two spells before it, you can click "Obscure Tab" on any tab except the main tab, so you can hide your creature images as well.
This will work to hide lineage creatures and basically anything if you really really want to hide the creature images. In their place would probably be a cloud of fog (or a question mark)