[quote]No not at all, I did the Mountain quest on the character that has the book currently. I remember completing it a few weeks ago, 2 maybe.[/quote] What quests are in your abandoned quest kiosk? Keep in mind that the abandoned quest kiosk has an issue where only page one displays. If page one is full, pick up some of the quests to move other quests off of subsequent pages.

[quote]I just went through the kiosk, nothing of Mountain Top, I remember 2 or 3 weeks ago completing the elimination part then completing the rest.[/quote] Are you able to provide a list of everything in your kiosk, or pick up all of the quests in your kiosk on your Hunter so they are visible on your legend?

[quote]Current and all quests: The Dark Below, Jolly Holiday, Legend of the Hunter, Path of the Bladedancer, Sheathed Lightning, Just a handful of bullets, Path of the Gunslinger, Impress Lord Shaxx, Weapon Master, Fruit of the Garden, House of wolves, against the hive, and Nothing left but the fall.[/quote] Weapon Master is a component of the Mountaintop quest line. You can see a summary of the entire line, here: https://www.bungie.net/en/Help/Article/44963