Endl remained lying in the cave for a long time until his mana recovered at least a little. His mana was far from fully recovered, but at least it was enough for him to use the magic of light to heal his wounds.
He was sure he had very serious injuries to his body, he was covered in blood in some places, the superficial injuries were not so serious, he was afraid it was the injuries inside his body.
His bones could all be broken and he could die at any moment, so he had to use his light magic at least to heal these wounds before he even tried to get up. If he tries to get up with his body so badly injured it may cause him more problems.
"Come on, don't let me down." He said and then started using the magic of light to heal himself.
A small light started to come out of his hand like the time Sylphe healed her, and after a while he was able to see the cuts that were in her body gradually healing and her mana was also coming down.