Nếu hiệu ứng của Ghost Charon, the Underworld Boatman được kích hoạt và Book of Moon là chain để Ghost Charon, the Underworld Boatman mặt xuống khi hiệu ứng của nó biến mất, thì hiệu ứng của nó có áp dụng không?

DARK 2

If your opponent controls a monster, and you control no other monsters: You can target 1 Fusion Monster in your Graveyard; banish both this card from the field and that target, and if you do, Special Summon 1 Dragon-Type Synchro Monster from your Extra Deck whose Level equals the total Levels those 2 monsters had (original Level, if face-down). You can only use this effect of "Ghost Charon, the Underworld Boatman" once per turn. You cannot Special Summon monsters the turn you activate this effect, except Dragon-Type monsters.

Spell Quick

Target 1 face-up monster on the field; change that target to face-down Defense Position.