Diablo 3 Walkthrough Part 22: Drowned Temple

Your next objective in "The Broken Blade" quest, is to take the Scoundrel north to the waypoint. The Scoundrel opens the gate to the Northeast. He realizes though that the Scoundrel was a fake. He tells you that he should have known, and he does not want to stay here. He suggests you might need a helping hand. The Templar remarks that he hopes you are not considering this criminal's proposal.

You arrive at the Drowned Temple. Talk to the Scoundrel again near the waypoint. He introduces himself as Lyndon. It will give you the following choice:

Scoundrel:
The Scoundrel is a deadly trickster who wields two-handed bow weapons.
Do you want to replace The Templar with The Scoundrel?
If so, the Templar will return to town and you can add them to you party at any time.

Make your choice, though it is recommended you take the Scoundrel, since he is a new follower, so that you can become familiar with his skills and abilities. Be sure to left click on the Scoundrel and pick the skills for him, if available. Also, the Scoundrel and Leah exchange some pretty funny and witty dialog lines, which is another reason to have him join your party.

Your next task is to go to the Drowned Temple. Then, you need to talk to Alaric, a ghost standing at the base of some stairs. Leah says it must be Alaric the Guardian, her uncle Deckard told her of Alaric's eternal watch over this cursed place. She thought it was a myth. Alaric asks Leah if she is Nephalem. Leah says that no, there have been no Nephalem for a millennium. Alaric calls it yet another myth. You seek entrance to this temple, but only a Nephalem can enter. If you retrieve the keys from the outlying tombs and use them on the gates, we will see who, and what, you truly are.

Alaric instructs your party to follow him. He will raise the bridge, that you may pass.

The next step in this quest is to go to the Festering Woods. Climb up the stairs, following Alaric. He tells you to seek two tombs in the woods beyond - the Warrior's Rest, and the Crypt of the Ancients. Within them reside the keys to our sacred temple. Cross the bridge towards the yellow waypoint.

As you enter the Festering Woods, the current quest objective is completed.