G3 ideas. New passage goblins, ... Knights of Myth Drannor

My idea… new side passage secret small but party finds. Goblins. Arguing. Really they are escaping a monster.   Maybe a otyugh or gelat cube. Point is tho, a whole goblin area becuz been getting scraps from giants or whatever. Leads to underdark, eh? But a cave-in (there was a rumble and shaking due to volcano earlier), so they got trapped. Party can use as sleeping rest base. IF not caught. 

• PBetter yet, they r running from drow. Originally this a drow spying area, but goblins found it. Now drow are clearing the, out. 
• Plasms introduced here? Or not enuf fire? Not dramatic enough? 

Link to the Knights of Myth Drannor: https://forgottenrealms.fandom.com/wiki/Knights_of_Myth_Drannor

 Thanks to ashockney who mentioned them here, what a cool idea: https://www.enworld.org/threads/leading-up-to-and-then-running-g1-g3-for-3-5-advice-needed.123718/

 can spice it up a little, and possibly add some much-needed support, by introducing a competing party...say the Knights of Myth Drannor. Very typical of the FR, and would make for many cool cameos. It would be very unlikely that someone wouldn't want to get involved from the various power groups in the FR, and identify/partner with the Drow and their mission. Perhaps even an all-elven strike force sent to eliminate the threat....and they're not too friendly with any non-elves, for that matter.

 So how would the knights appear at the right time? 

• They were scrying on the progress, and realized they had to make way to G3 area b/c the kid's party was doing so well. 
• Maybe a powerful wizard tported them there. 

Here's a fun run through, whole website dedicated to Against The Giants to: https://www.againstthegiants.com/chapters/chapter_3/day1part4meetsnure/

• Note, that was interesting to make them think the pyrohydra was a straight Dragon.
• ANOTHER HYDRA(?). Yep confirmed on Day 2, there is another one in these guys ran at least. I was already planning for a second one myself. 
• OhhoooOOOhhhh, they are using normal hydra, b/c 5e didn't ahve pyroHydras.
• proof: “Remember to burn them!” and shoots a bolt of fire at the hydra, while Fennuris follows with flaming arrows. ADC then summons a fire elemental that swiftly dispatches the hydra.
• Leomund's tiny hut
• Gnolls with Ballista (this was near the Ombi bad dwarf)
• Fire salamanders swim in lava
• Bone batons? 
•