Heroes in Crisis: The Price and Other Stories #1

Mourning Wally's death at Sanctuary, Barry travels into the Speed Force, where he is surprised to find Godspeed. Godspeed than attacks Wallace, Avery, Meena, and Barry at Iron Heights, but after defeating them, he is surprised by the appearance of Impulse, a speedster unknown to him. After Godspeed escapes, Barry tells Wallace and Avery about Wally's death, and then must break the news to Iris.