Manaku:
The elf looks back at the direction they had come and could hear sounds of skirmish there. He then hears voices ahead - is that Brodd speaking? He can make out word "a basilisk". Torn on what to do he simply grimaces and presses his back at the cavern wall, bow at the ready.
Aside from a kobold corpse tumbling to the elf's feet, no further threat comes.
Higher up, the three look around awkwardly and find no one else to fight, and no further switchbacks.
At the other end of the party, Chomper sniffs at a petrified rat's nose. He pauses, then stares down the trail, then back at the rat. He starts to whimper and lays down, covering his eyes with his paws.