Beginning

This book takes place during Marvel Phase 1. We meet Bella (Or Revna) Romanoff, Lavinia Lokidottir and Zephrine Stark.

[Iron Man 2]

One day, Tony Stark has a visitor named Zephrine, who turns out to be his daughter.

[The Avengers]

Loki comes to Earth, threatening to start a war. Zephrine, Lavinia and Bella join the Avengers to stop him. Meanwhile, Bella learns something shocking about her biological father.

The only characters I own are Zephrine, Bella and Lavinia. The rest are from Marvel.