Riftwar. Serpentwar saga

"A dread darkness is descending upon a great land called Midkemia--a powerful and malevolent race of monsters that has slipped through a hole in the dimensions. And two unlikely young heroes--a bastard heir denied his birthright and an irrepressible scoundrel with a penchant for thievery--must take up arms in the struggle to protect their besieged world; two friends chosen by Destiny to stand at the fore of the battle that is to come against the gargantuan...

The Serpentwar rages on! In Rage of a Demon King-the spellbinding third installment in Raymond E. Feist's masterful epic fantasy, The Serpentwar Saga-the imperiled realm of Midkemia confronts its most devastating horror, as a nightmare beyond imagining descends upon the war-torn land determined to devour and destroy. A terrible conflict reaches a breathtaking climax-a world-annihilating conflagration that pits serpent against man and magician against...