Altered Glossary
7.4.1 Defender
7.4.1.a Defender is a passive ability that appears on Characters.
7.4.1.b An expedition containing a character with Defender cannot move forward during Dusk.
7.4.1.c An expedition containing a Character with Defender always "fails to move forward".
7.4.1.d Defender applies to any reason why an expedition might advance during Dusk, not just the Progress daily effect.