Written by BRIAN K. VAUGHAN. Penciled by MARCOS MARTIN. Cover by MARCOS MARTIN. Doctor Stephen Strange embarks on the most important paranormal investigation of his career, as he sets out to solve an attempted murder - his own! And with his most trusted friend also at death's door, Strange turns to an unexpected corner of the Marvel Universe to recruit a new ally. Eisner Award-winning writer Brian K. Vaughan (RUNAWAYS, Y: The Last Man) and red-hot artist Marcos Martin (CAPTAIN AMERICA, Batgirl: Year One) join forces for an adventure that will take the Sorcerer Supreme from the underworld of New York City to the deadliest dimensions on the outskirts of reality - while firmly establishing him in the current Marvel Universe and setting him up to join a surprising new team! Collecting DOCTOR STRANGE: THE OATH #1-5. 120 PGS./Rated T+.