Talk:The Secret Library: Olaf and the Tale of Miss Nettle/@comment-25305489-20160127232237/@comment-25137954-20160128111545

The answer is given by the series creater. The amulet summoned him

https://twitter.com/_CraigGerber/status/687323552190574592/photo/1

And from what he says about the everyone summoned by the amulet we can assume that Olaf in the episode is either dead or hasn't been created yet during the events of the episode

https://twitter.com/_CraigGerber/status/692403878118215680

You'd better hope that anna and elsa never get summoned by the amulet