When does Skid's turn ends?

[When does Skid's turn ends?]

This is a game of 4 investigators. Joe Diamond, Tommy Muldoon, Roland Banks and "Skids" O'Toole.
I was Tommy Muldoon.
I've got "Skids" O'Toole here on the Unvisited Isle, his encounter reads :
As you row along the island's shore, a tree branch cracks and falls toward you. Make a speed (+0) check. If you fail, you are knocked out and wake up far downstream; move to Graveyard and your turn ends. (this card is from the Egyptian expansion)
***********
At the Graveyard there is a GATE (Another Dimension) and 1 monster (Fire Vampire), and from my experience having played well over 150+ games of Arkham, I believe that "Skids" would now go to the Graveyard where he is then sucked into the gate to Another Dimension and then his turn ends. Like the card read, his turn ends.

 

AnOTHER person I play this game with (who is NOT playing SKIDS, either) believes that : "Skids" turn would go as follows : "Skids" went to the Graveyard, placed skids on the gate marker and his turn ends and then on his NEXT turn he would first HAVE to deal with the monster on the gate (the fire vampire) and then if he's still on the gate would be sucked into the gate (another dimension).

My wondering lies in who is RIGHT?!
 

[The Second Great Ritual of Voting: This Time, It's Personal]

 Last vote: avec

Hurt:  Zoey

Hurt: Rex Curses!

Heal:  Tommy.  He's my guy!

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[The Second Great Ritual of Voting: You Can't Hit "Snooze" With A Tentacle]

Last post: mageith

Hurt: Glaaki Too surprising. I don't know.

Hurt Hastur: Who has time to gather/ate clues

Heal: No one yet

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