A Light Question

[Roger Folks]

Dear Players,

I do not know the game, and I have not played it yet, but my dad has played this game a lot, and his birthday is coming.
So I decided to give him a gift deck, but I need to know, if he can play the expansion 6 without having a 5? (For example) or the game asks to follow an order of expansions (First to 1, then to 2 ...)

It already has the following Expansions:
The Skinsaw Murders
The Hook Mountain Massacre

I thought about giving:
Fortress of the Stone Giants
or
Spiers of Xin-Shalast

What do you think he will like more?

Thank you.

[Ridiculon]

Hi Dalton, it looks like your dad has numbers 2 and 3 of the Rise of the Runelords Adventure Path. If you are going to get him another Rise of the Runelords book be sure to get them in order, you wouldn't want to play through the 6th book without playing the 5th one first.

[Dustin Heaton]

It looks like you may actually be talking about the card game (the use of deck instead of book), but Ridiculon's advice applies there as well. They have to be played in order.