As their powers grow stronger (and their differences make them less and less crazy), our heroes are summoned to Iraq. Here, with the help of a strangely familiar guide, they are called to confront the four angels mentioned in the last book of the Bible -- the ones held captive under the Euphrates River and who are scheduled “to kill a third of mankind."
This book is part of the Harbingers Books series and is book #17 in the series.