Snake Charm (spell)

Snake charm allows the caster, through gestures, instrument or song, to still the actions of snakes and other reptiles, mesmerizing them. Only natural animals are affected. The caster is able to maintain the charm against one or more creatures, even shifting the effect from creature to creature, so long as the number of hit dice affected in any round remains within the area of effect.

Snake Charm

Range	30 ft.
Duration	4-14 rounds
Area of Effect	2 hit dice per level
Casting Time	1 round
Saving Throw	none
Level	cleric (2nd)

This attention does not count as concentrating on the spell. For the duration of the spell, the caster may forego the charm long enough to swing, cast a different spell or whatever ... returning to charm the animals when convenient. While charmed, those affected will gently sway, lifting themselves from the ground as much as possible. When released during the caster's round, the creature will automatically lose their first attack in recovering itself.

There is no saving throw; however, once a creature is attacked, regardless of whether damage is bestowed, that individual will be freed from being charmed for the remaining duration of the spell.

It is possible, then, to maintain control over even an enormous snake long enough to slip past to safety, by intermittently controlling it round to round while moving forward.