The King in Black casts his shadow over the Reign of X! As the Council makes moves to protect the mutants in Otherworld, Excalibur must determine Betsy Braddock's true fate! The S.W.O.R.D. station is thrown into the deep end of a planetary crisis as Krakoa battles the forces of symbiote god Knull! While a cross-division S.W.O.R.D. team take on dragons from outer space, Abigail Brand prepares a deniable operation all her own. What is Protocol V -- and can the Earth survive it? Meanwhile, Captain Kate Pryde and her crew of Marauders set sail to fight for the needy amid the global disaster Knull's invasion has caused! Collecting EXCALIBUR (2019) #18-19, S.W.O.R.D. (2020) #2-3 and KING IN BLACK: MARAUDERS.