Travel to Stormwind City and seek council with Renzik "The Shiv."
Word of your deeds has spread far and wide, <name>. So far, in fact, that Stormwind Intelligence has asked for you by name.
The journey is taxing and not without peril, but an opportunity to train under SI:7 should not be taken lightly.
A new world awaits you, <name>. Make your way to Old Town in Stormwind and speak with Renzik "The Shiv" at SI:7 headquarters.
You have answered SI:7's calling, <name> and journeyed from distant shores to join our ranks, however, there is much for you to learn.