A routine holiday for Grandfather and his canine sidekick Roo turns into an adventure when the two join an expedition to find the Door to the Sea.Sailing aboard the good ship Unsinkable, the intrepid explorers endure high waves, tall tales, and deteriorating table manners. Finally, the adventurers reach their destination, pulling in boatloads of codfish with their nets, all the while keeping an eye out for a glimpse of the mighty King Cod himself. Then disaster strikes and the Unsinkable is sinking! Grandfather and Roo abandon ship. But how will they find their way out of the briny deep now that they are lost at sea?Author-illustrator Harry Horse tells this hilarious, original story through a recovered ship log and a series of letters written by Grandfather to his grandchild back home. Horse’s winsome pen-and-ink illustrations capture the charmingly eccentric personalities of Grandfather and his delightful canine companion. The result is a fanciful tale that will delight young and old alike.