For outwitting the guards and delving deeper into the drow outpost you each receive 1,000 experience points
As well, you have secured the assistance of Larala, a Dread Fang of Lolth and rogue of seemingly considerable talent.
ooc: although this means there are now 5 party members for now, the xp shares actually won't change as Pathfinder rewards the same xp to each character for a group of 5 as characters as for 4.