LaCroix opens the box

The Fledgling leaves LaCroix with the sarcophagus.

Jack has already removed the body and substituted explosives.

LaCroix opens it and dies.

The Fledgling survives and departs.

Ming Xiao’s immediate operation is defeated, while Anarch interests remain powerful and Strauss retains opportunities.

The Fledgling’s clan, ultimate allegiance and later whereabouts remain uncertain.

Jack’s involvement does not mean the whole Anarch movement knew his plan.