What punctuation mark is used to express strong emotions?

The exclamation point expresses strong emotions.

As the boys sleep, military airplanes battle fiercely above the island. none of the boys sees the explosions and flashes in the clouds because the twins sam and eric, who were supposed to watch the signal fire, have fallen asleep. during the battle, a parachutist drifts down from the sky onto the island, dead.

Iwould say “longest” i could be wrong thoughof the two roads, i’be always taken the longest one.