After the transition into vampires, the Mikaelson's then look around and notice Ivan on the floor dead or so they think.
Klaus sees this and starts to scream in agony "brother get up. Mother, why isn't he waking up what did you do to him?"
Esther looks at her son in shock. She sits down and tries to ask the witches why this happened. but they only say that they cannot understand but are glad it failed and that they will no longer answer her calls, for she's gone against nature.
She looks at the sobbing Klaus and sadly answers. "My son I'm sorry I do not know why this has happened but all that I know is your brother is gone."
"Mother there's no way he's gone he's a part of me I can feel it he's not gone!"
Mikeal that's been in the back looks at another of his children dead and is consumed by anger "boy your mother said he's gone, so that's enough at least we all are together he wouldn't want to be the reason we fight but what should we do know?"
Esther looks around and comes to a decision "my family, how about we give him an amazing resting place, I think we should put him in the cave near the river and surround him with flowers."
Klaus just looks at all of his siblings with wet eyes. "Mother I would like to be the one to do it, please allow me this."
"Well my son, let's go now before there's daylight and too many people notice."
The cave had a box that was not put in the ground, around the box were amazing white lilies and the occasional sunflower.
And after Ivan was put in the cave everything continued while he was in a dream. While he was asleep everything played out as in the show. Mikeal slaughtered the werewolves that killed Henrik and they also found out about Klaus' real father when he activated his curse by killing for the first time, Esther sealed his wolf side with a ritual using some of Tatia's blood that she had taken when they started the vampire spell.
Once that was exposed out of rage Klaus killed Esther but then blamed it on their father. Which lead the siblings to make a pact "always and forever." which when Mikeal found out he tried to murder Klaus which lead Klaus to convince his siblings to flee together.