Well, that was eventful enough. The artifact was retrieved with nary a hitch, thanks to a diverson from the PDF and the fact that all those Kroot the Tau sent to guard it actually could not break through the Kill Team’s power armor. In fact, the only injury on the entire mission was caused by the Lamenter accidentally throwing his chainsword at the Space Wolf’s chest. There’s that Lamenter Luck for you, about as bad as the Parker Luck. Retrieving the artifact, they only briefly opened the case, and promptly shut it again when purple light came out because in the 40k universe Purple = BAD.
Otherwise, they chose not to inform Maur about exactly what had occured on the surface, instead giving him just enough information to keep him interested. He has requested that they keep an eye on Kraul for him.