D&D 5E (2024) How can I do a Charisma-Investigation (or a Strength/Dexterity-Investigation if I can't use Charisma) to find a secret door?

[jasper]

Ok we are in a Dungeon full of secret doors that you need an Investigation check to find. The whole party dumped Intelligence. We do have a Rogue that has expertise in Investigation, so he is pretty good at it, but he is out for 2 weeks. The rest of us have a -1.

The DM lets us use other abilities if we can explain how we do it. My Warlock 4/Fighter 1 has a +2 Strength, +2 Dex and +4 Charisma. The problem is I can't think of a creative way to use those abilities looking for secret doors.

Oh, what a lovely set of doors. It has some nice knockers. In this one dungeon, I would just say the party screwed up. And move any story/needed items out from behind secret doors.

 

[kermit4karate]

Ok we are in a Dungeon full of secret doors that you need an Investigation check to find. The whole party dumped Intelligence. We do have a Rogue that has expertise in Investigation, so he is pretty good at it, but he is out for 2 weeks. The rest of us have a -1.

The DM lets us use other abilities if we can explain how we do it. My Warlock 4/Fighter 1 has a +2 Strength, +2 Dex and +4 Charisma. The problem is I can't think of a creative way to use those abilities looking for secret doors.

Let them die.

Only half kidding. But what did they expect after they all dumped INT?