Ruby & Nolan's Great Adventures in Space Book 6: Merpeople

Three Consortium representatives arrive to assess the settlement's progress.
The leaders introduce the Dragons and the Others, emphasizing that negotiating a trade relationship is a more valuable investment than trying to take resources by force!

An alliance is formed, consisting of all the inhabitants. The Dragons reveal that they can temporarily collapse the Wormhole to create time for negotiations with Earth, or if needed, can close it permanently!

Will the Consortium, under Mr. Hendricks's supervision, be successful, or will the dragons close the wormhole permanently? Will the colonists stay or have to return to Mother Earth?

Ty and Robin decide to take a family vacation at a lovely beach with a large tide pool, where Ruby and Nolan can swim safely. The parents fall asleep, and Ruby and Nolan go exploring. They help a young girl injured in the surf, and she invites them to visit her home in the sea, and she says that breathing underwater will be no problem.
She gives them an awesome “gift,” which she assures them will only last while they are visiting her home. They follow her to her beautiful under-the-sea home and are told by Master Cyraeneus that they cannot go home again!

Woops, not again! Does the gift sound great? Are you wondering if the “gift” is permanent? And can they ever go home?