Cloak of Invisibility

Your Mystimon Partner creates a transparent invisible wall that makes any creatures on one side of the wall invisible to those on the other side. You choose which side of the wall provides invisibility to the creatures on that side when you cast the link spell. You create either a 1 inch-think wall in a straight line up to 60 feet long and 10 feet high or a 1 inch-think, 10 foot-radius sphere at the same height. The wall is intangible and stands vertically in the former form. If you wish to do so, you can create the wall with a shorter length or height, or with a smaller radius. Any creature that crosses the wall becomes visible or invisible as appropriate, and it's visible if any portion of it is on the visible side of the wall. If a creature rendered invisible by the wall takes a hostile action, the spell ends after the hostile action is completed.