Season of Storms by Andrzej Sapkowski

Geralt of Rivia. A witcher whose mission is to protect ordinary people from the monsters created with magic. A mutant who has the task of killing unnatural beings. He uses a magical sign, potions and the pride of every witcher -- two swords, steel and silver. But what would happen if Geralt lost his weapons?

In this standalone novel, Geralt fights, travels and loves again, Dandelion sings and flies from trouble to trouble, sorcerers are scheming ... and across the whole world clouds are gathering - the season of storms is coming...