If we are going to rest between teleporting and going into battle, so he can save the scroll.
Ari says:â€Astrek, Navi and I will go as part of the first deployment to secure the area for the second group. Master Kirkley and Lady Shaar, your company would be welcome, if the spell can take us all.â€
Also, probably a good idea to keep some teleport castings or scrolls in reserve in case we need to beat a hasty retreat. Navi can cast regular teleport. We should establish a muster point on this side of the barrier.