is directly referenced in The Lost Years
, so those two are in continuity (specifically the '80s novel continuity
); and Crossroad
is alluded to in Forgotten History
, so those two are in continuity (specifically the modern novel continuity). Black Fire
, on the other hand, is off in a world of its own in so many ways...
Crossroad also references Mr. Mahase, an alien crewman who appears in several other Original Lit-verse books, so it's one of those rare books linked to both the old and new continuities.