The nature of the "snow" was initially unknown.

Before reclaiming his previous role, it was initially unknown if he would be returning as Todd or someone connecting him to the character.

The ship disappeared on 25 December 2011 and its fate was initially unknown.

The physical interpretation of Pauli's "degree of freedom" was initially unknown.

Whether the Huntsman was dead or alive was initially unknown.

Temporarily interesting are only the initially unknown, novel, regular patterns in both actions and observations.

Initially unknown to her, Fantaghirò was born with a very specific destiny, which is to destroy all the evil in the land.

The cause of the explosion was initially unknown.

This is guarded by a monster which is initially unknown.

Zenonias protagonist is Regret, a young man whose origins are initially unknown.