Lost at Sea (Puppy Pirates #7) by Erin Soderberg
SOS! Wally and the Puppy Pirates know the legends and mysteries about the Grr-muda Triangle, but could all those strange stories be true? There’s only one way to find out: the Salty Bone is going to sail straight through the Grr-muda Triangle! Will the crew make it out alive? Or will they be lost at sea forever . . . ?