Fallen Son: The Death of Captain America five issues, each based on Elizabeth Kubler Ross' Five Stages of Grief: denial, anger, bargaining, depression, and acceptance. Loeb lobbied hard to write the series, and succeeded, saying that he could draw upon his own experience of having lost his son Sam Loeb. In the Spring Preview issue of "Wizard" magazine, Loeb said: Wolverine confronts The Winter Soldier about the improbability of Captain America dying from the gunshot wounds suffered at the court house; especially since both Captain America and Winter Soldier, the former Bucky, have both been thought to be dead at one time yet survived. Unable to get
What Love Is Made Of three minutes and fifty-five seconds (3:55), "What Love Is Made Of" is an uptempo dance and house track that has been described as "rave-y" and "trance-y". Its instrumentation contains the sounds of pianos and synthesizers. Jordan Sargent of "Spin" observed that it continued the musical style first introduced in Katy's 2012 extended play (EP), "Danger EP", which was "straight-forward house". Idolator's Sam Lansky compared her performance in the song to recording artist Siobhán Donaghy. Critical response to "What Love Is Made Of" was generally positive: most critics noted Katy's vocal performance and commended its sound. Siân Rowe from "NME" was