We successfully crept up on most of the patrolling trolls until we reached the back garden, where we needed to surface to better separate the elves from the trolls.
[Biter, it's time to send the second group to clean up the trolls who are in the building while we finish cleaning up the trolls in the back garden and free the elves. Tell them to not engage in the boss room, wait outside the door until we can meet them there.]
[Alright! Stay safe Master!]
"Alright Blaze, let's get out of this sand."
[Right!] Blaze dug to the surface.