There are 3 books in the Riyria Revelations series. The newest book is Heir of Novron which came out in 2012.

1
Theft of Swords

Book cover of Theft of Swords
Royce Melborn, a skilled thief, and his mercenary partner, Hadrian Blackwater, make a profitable living carrying out dangerous assignments for conspiring nobles-until they are hired to pilfer a famed sword. What appears to be just a simple job finds them framed for the murder of the king and trapped in…
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2
Rise of Empire

Book cover of Rise of Empire
The adventure continues as Royce and Hadrian aid the struggling kingdom of Melengar as it alone stands in defiance against the newly formed empire. War approaches and a desperate gamble behind enemy lines is their only chance at forming an alliance with the Nationalists to the south.

But Royce has…

3
Heir of Novron

Book cover of Heir of Novron
The New Empire intends to mark its victory over the Nationalists with a bloody celebration. On the high holiday of Wintertide, the Witch of Melengar will be burned and the Heir of Novron executed. On that same day the Empress faces a forced marriage, with a fatal accident soon follow.…