From publisher blurb:
Adventure Awaits in the Deeps!
101 Aquatic Spells gives players and GMs a vast expanse of new spells. Whether characters are the crew of a mighty sailing ship, using an island base to explore nearby sunken ruins, or preparing to undertake the massive tribulations of an underwater campaign, this volume will provide dozens of new and unexpected spells for PCs and for NPC friends and foes to aid or challenge players.
What’s hiding in that mass of kelp? How best should those pesky sharks be handled?
And what awful magic do awakened sharks have access to?
What secrets are held beneath the dark waves populated by things never seen in the bright light of day, or along any landscape exposed to the air?