A review by scaifea
The Tower at the End of the World by Brad Strickland, John Bellairs, S.D. Schindler

4.0

Lewis, Rose Rita, Uncle Jonathan, and Mrs. Zimmerman are racing against yet another Doomsday Clock to save the world from old Isaac Izzard's son, the equally nasty Ishmael Izzard, who has set up his evil shop, so to speak, on an invisible island.
This series is so fun and I love that Charlie loves them, too. As always, just the right amount of creepy without becoming outright scary.