Is Frozen Sick a one-shot or is it an ongoing campaign? I work a lot with homebrew and am doing my first campaign with totally new players. I would love to find a nice premade oneshot to help both me and my players.

It’s a one-shot. It’s a nice intro for people who have never played. Get some dialogue, investigation and action. And not tough to run.

Thank you so much!

I would say it's halfway in between. It's an adventure set for level 1-3 characters, most definitely longer than one session, but not a full campaign.

I had session 1 for my players this weekend, and out of the 22 pages, we got through 4. Granted, we are a little slow, and a very social group, but we also play for longer than a normal group. I imagine a normal group would get through 4 pages in a normal 2-3 hour session, which puts it at maybe 4-5 sessions?

It's intended to be a launching point for a longer campaign set in the north. I'm planning on daisy-chaining a few free adventures together, that takes them further south, and east - it's an undead themed campaign.

Frozen Sick was the first thing I ever ran as a DM. Took us 3 or so sessions, and my sessions last 3 hours or so. To be fair I also started them off in a home brew dungeon instead of the actual start in the book.

It's a great first timer for new players (probably DMs too) and can be milked a lot.  I'm running for a group of 5, only one of whom has any considerable experience with 5e and after about 18 hours (two hour sessions) they just have a library to check out and bring the antidote back.  I reskinned it for Forgotten Realms, set the start up in Luskan (so either the Ships or the Arcane Brotherhood could forge patron relations with the party if they succeed) and put Eiselcross as a sort of Archangel type camp on the Sea of Moving Ice.  And the Netherill as Mercer's Auxs or whatever he calls his version of the Netheril.  I even had fun with the Salvault robes and did Hero Forge photo renditions of the characters in ... basically space suits to give a Barrier Peaks adjacent vibe.  

When they're done this could lead into some adaptation of Rime of the Frost Maiden, it's the most obvious direction; but I'm taking a sort of sandbox approach to this group so we'll see where they go next.  The crash of Salsvault is now key to the backstory of some world elements if the party opts to pull those threads in time, so they may go back there someday/sometime, and RotF has the literal mechanism to do that.

I'd say experienced players could probably knock it out in a 4 hour session, two tops, but this group most of the sessions were tutorials and the party is actually exhibiting team work and awareness of tactics and such.