RPG Adventure - Blood and Coin

[Elias]

FIGHT!

Battle (Click to View)

Both parties roll for innitive.
Your party 1d20 = 6
Assassin party 1d20 = 20
You guys go first.
Amadis flays his axe at one of the assassins who is closest to the duke 1d20 = 13 (Success) roll for damage 1d8 = 4.
Fiz cast Magic Missile at the same assassin 1d4 = 3. The assassin burst into tiny bits after the spell hits him.
Henry swings his club at one of the assassins nearby 1d20 = 18 (Success) roll for damage 1d6 = 1. He is still up.
Larezo swings his sword at the one assassin still alive 1d20 = 16 + 1 (Success) roll for damage 2d4 = 1 + 3 = 4. The assassin still up.

Assassin's turn.
The one closest to the duke swings at him 1d20 = 15 (Success) rolls for damage 1d4 = 3. Larezo is still up.
The two assassins next to Henry both swing at him 1d20 = 6, 1d20 = 6. Both miss.

Now I want to know what you guys do again. Since Fiz cast a spell he can no longer use it for the entire day, until he rest or uses his book of spell to re memorize it.

EDIT @STM: I believe no.