Merlin in the Library by Ada Maria Soto

Agent Martin Grove is in pain every minute of the day while his wounds slowly heal. As soon as one injury starts to fade another that was hidden presents itself, but despite that Martin is, above all, a man who appreciates routine. For him that means ‘Merlin’ must return to the regularly scheduled Saturday Children’s’ Story Hour at the library. He’s been absent for too long and his body is still a technicolor canvas of physical damage, but as long as he has his Arthur by his side, he just might make it.