Keys from the kingdom. Book 4. Sir Thursday

Previously, Arthur Penkhaligon always managed to relax from exploits in his usual earthly world. But after he took possession of the third key, he could not return to his relatives. The new adventures overtook the boy before he managed to leave the halls of the mysterious house ... By absurd accident, Arthur picked up a coin harmless in appearance - and immediately turned out to be a recruited soldier of the invincible army of Thursday! Well, unlike Mr. Monday and the gloomy Tuesday, the drowning environment did not want Arthur anything bad ... Maybe this time it will cost?
Gart Nix"s books have long been appreciated by young lovers of mysterious stories. However, adults also read them with pleasure. And it is not surprising, because the fantastic worlds of Nicks are always unique, and the adventures that fall to the share of the heroes are always unexpected. “Sir Thursday” is the fourth book of the cycle “Keys from the Kingdom”