Book excerpt: There has been a lack of serious historical investigation of the famous creedal statement 'Christ descended into hell' that was universally affirmed by the church for the first 1,500 years of Church history. This book is an in-depth investigation of the history of the doctrine of Christ's descent and how Revelation 1:18 alludes to Christ's descent. COMMENDATION "In The Battle for the Keys Justin Bass leads us through an exceptional exegetical, historical, and theological exploration of the question of both the whether and whither of the Christ's descensus ad infernos. Whatever doubters or believers choose to do with Dr Bass's competent and convincing evidence, arguments and conclusions, they cannot choose to ignore them." - Michael J. Svigel, Dallas Theological Seminary, USA