The insect, whatever it was, moved too fast. Nero had only just processed that something was about to happen, and the attack had already happened. By the time he turned around, he saw that Liam, the Neophyte who could make barriers with his innate ability, had his entire right foot in the ground, as if he had fallen into a hole.
"Jump!" Nero roared, sensing more vibrations from the ground. Nero himself did not exactly jump but just lifted himself off the ground, stabbing his spear into the ground and using it as a poke. Simultaneously, he channelled all his Cryoflame and used it to blanket the ground with his flame.
The others jumped just in time, either due to Nero's warning or their own judgement, just in time to avoid being stabbed by a dozen, skinny insects that burst from the ground.
Nero recognised what they were. They were called Beach worms, and were quite common in some areas on the edge of Ventura lake.