Xkalibur

Patrick Riley, college student, suddenly finds himself holding two ancient swords - and his body transformed into that of an alien metallic warrior. Is it possible his old friend Cameron Kensington can help him return to his normal state or have Cameron's own changes made him the enemy?

While Patrick faces the changes that have overtaken him Claire exhilarates over her ability to enter within the electronic realm within the internet - finding danger lurks in all aspects of the universe.

The second book of The Many Worlds of the Solarian. There are too many changes coming to miss a single installment.