Thor woke up and relized his hammer was missing to he got his brother to help look for it. Loki found out it was the frost giants that took it. so to get the hammer back he had to pretend to be a goddess and marry the giant.
Loki hates blader so hes saying to himself I must find a way to harm him! So loki pretends hes someone else and he messed with a misle toe that can kill balder. and he killed balder. Oidin and Frigg beg him to let his son live.
Loki stole Ferya's necklace because how beautiful it was. So he waited till she fell asleep and he stole her necklace. He jumped in the ocean as a seal. But a god named Heimdall saw him and turned into a seal and fallowed Loki. Once he saw Loki on a rock he fought him and returned the necklace to Ferya.